10113213231 has 32 divisors (see below), whose sum is σ = 16469418240. Its totient is φ = 6082408800.

The previous prime is 10113213223. The next prime is 10113213259. The reversal of 10113213231 is 13231231101.

10113213231 is a `hidden beast` number, since 10 + 11 + 321 + 323 + 1 = 666.

It is not a de Polignac number, because 10113213231 - 2³ = 10113213223 is a prime.

It is a super-2 number, since 2×10113213231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113213211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91060 + ... + 168873.

It is an arithmetic number, because the mean of its divisors is an integer number (514669320).

Almost surely, 2^10113213231 is an apocalyptic number.

10113213231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10113213231 is a deficient number, since it is larger than the sum of its proper divisors (6356205009).

10113213231 is a wasteful number, since it uses less digits than its factorization.

10113213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260084 (or 260078 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10113213231 its reverse (13231231101), we get a palindrome (23344444332).

The spelling of 10113213231 in words is "ten billion, one hundred thirteen million, two hundred thirteen thousand, two hundred thirty-one".