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20000102102121 = 310613628163639
BaseRepresentation
bin1001000110000101000101…
…11110110011010001101001
32121210222202111120211102210
410203002202332303101221
510110140202114231441
6110311530422315333
74132650113620461
oct443024276632151
977728674524383
1020000102102121
116410aa5264959
1222b01a1888b49
13b210034b22ab
144d201da38ba1
1524a3add03616
hex1230a2fb3469

20000102102121 has 8 divisors (see below), whose sum is σ = 26669315499840. Its totient is φ = 13332145052912.

The previous prime is 20000102102081. The next prime is 20000102102143. The reversal of 20000102102121 is 12120120100002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000102102121 - 211 = 20000102100073 is a prime.

It is a super-2 number, since 2×200001021021212 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000102102097 and 20000102102106.

It is not an unprimeable number, because it can be changed into a prime (20000102102921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314049981 + ... + 314113658.

It is an arithmetic number, because the mean of its divisors is an integer number (3333664437480).

Almost surely, 220000102102121 is an apocalyptic number.

It is an amenable number.

20000102102121 is a deficient number, since it is larger than the sum of its proper divisors (6669213397719).

20000102102121 is a wasteful number, since it uses less digits than its factorization.

20000102102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628174255.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20000102102121 its reverse (12120120100002), we get a palindrome (32120222202123).

The spelling of 20000102102121 in words is "twenty trillion, one hundred two million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 3 10613 31839 628163639 1884490917 6666700700707 20000102102121