10231111312 has 20 divisors (see below), whose sum is σ = 19839742576. Its totient is φ = 5111177760.

The previous prime is 10231111291. The next prime is 10231111327. The reversal of 10231111312 is 21311113201.

It is a happy number.

It is a super-2 number, since 2×10231111312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254298 + ... + 291769.

Almost surely, 2^10231111312 is an apocalyptic number.

It is an amenable number.

10231111312 is a deficient number, since it is larger than the sum of its proper divisors (9608631264).

10231111312 is a wasteful number, since it uses less digits than its factorization.

10231111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547246 (or 547240 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10231111312 its reverse (21311113201), we get a palindrome (31542224513).

The spelling of 10231111312 in words is "ten billion, two hundred thirty-one million, one hundred eleven thousand, three hundred twelve".