231211010112 has 56 divisors (see below), whose sum is σ = 611781758400. Its totient is φ = 77065806336.

The previous prime is 231211010083. The next prime is 231211010131. The reversal of 231211010112 is 211010112132.

It is a super-2 number, since 2×231211010112² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231211010091 and 231211010100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5437189 + ... + 5479547.

Almost surely, 2^231211010112 is an apocalyptic number.

It is an amenable number.

231211010112 is an abundant number, since it is smaller than the sum of its proper divisors (380570748288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231211010112 is a wasteful number, since it uses less digits than its factorization.

231211010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70803 (or 70793 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 231211010112 its reverse (211010112132), we get a palindrome (442221122244).

The spelling of 231211010112 in words is "two hundred thirty-one billion, two hundred eleven million, ten thousand, one hundred twelve".