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10202203021231 = 131953779329541
BaseRepresentation
bin1001010001110110001010…
…1011111101111110101111
31100010022200001220000022201
42110131202223331332233
52314123102433134411
633410454413322331
72102041046562604
oct224354253757657
940108601800281
1010202203021231
1132838036a8721
1211893091963a7
135900a99c6250
14273b09a366ab
1512a5b19ce3c1
hex94762afdfaf

10202203021231 has 16 divisors (see below), whose sum is σ = 11783462675040. Its totient is φ = 8753429393280.

The previous prime is 10202203021069. The next prime is 10202203021243. The reversal of 10202203021231 is 13212030220201.

It is not a de Polignac number, because 10202203021231 - 243 = 1406109999023 is a prime.

It is a super-2 number, since 2×102022030212312 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202203021199 and 10202203021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202203021291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389651680 + ... + 389677861.

It is an arithmetic number, because the mean of its divisors is an integer number (736466417190).

Almost surely, 210202203021231 is an apocalyptic number.

10202203021231 is a deficient number, since it is larger than the sum of its proper divisors (1581259653809).

10202203021231 is a wasteful number, since it uses less digits than its factorization.

10202203021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779329626.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10202203021231 its reverse (13212030220201), we get a palindrome (23414233241432).

The spelling of 10202203021231 in words is "ten trillion, two hundred two billion, two hundred three million, twenty-one thousand, two hundred thirty-one".

Divisors: 1 13 19 53 247 689 1007 13091 779329541 10131284033 14807261279 41304465673 192494396627 536958053749 784784847787 10202203021231