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10213031121231 = 31719293413106487
BaseRepresentation
bin1001010010011110100000…
…0101111001000101001111
31100011100121200212111002110
42110213220011321011033
52314312241431334411
633415445101155103
72102603301114351
oct224475005710517
940140550774073
1010213031121231
11328835a8a64a4
12118b42b55ba93
13591114124803
14274455b5b0d1
1512a9e74152a6
hex949e817914f

10213031121231 has 64 divisors (see below), whose sum is σ = 15705361382400. Its totient is φ = 5859789981696.

The previous prime is 10213031121229. The next prime is 10213031121259. The reversal of 10213031121231 is 13212113031201.

It is not a de Polignac number, because 10213031121231 - 21 = 10213031121229 is a prime.

It is a super-2 number, since 2×102130311212312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10213031121198 and 10213031121207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213031121221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95855470 + ... + 95961956.

It is an arithmetic number, because the mean of its divisors is an integer number (245396271600).

Almost surely, 210213031121231 is an apocalyptic number.

10213031121231 is a deficient number, since it is larger than the sum of its proper divisors (5492330261169).

10213031121231 is a wasteful number, since it uses less digits than its factorization.

10213031121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109968.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 10213031121231 its reverse (13212113031201), we get a palindrome (23425144152432).

The spelling of 10213031121231 in words is "ten trillion, two hundred thirteen billion, thirty-one million, one hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 17 19 29 51 57 87 323 493 551 969 1479 1653 3413 9367 10239 28101 58021 64847 98977 106487 174063 194541 296931 319461 1102399 1682609 1810279 1880563 2023253 3088123 3307197 5047827 5430837 5641689 6069759 9264369 31969571 34395301 52498091 58674337 95908713 103185903 157494273 176023011 363440131 997463729 1090320393 2992391187 6178482227 6905362489 10539763799 18535446681 20716087467 31619291397 117391162313 179175984583 200255512181 352173486939 537527953749 600766536543 3404343707077 10213031121231