231011412 has 24 divisors (see below), whose sum is σ = 539296800. Its totient is φ = 76965216.

The previous prime is 231011399. The next prime is 231011413. The reversal of 231011412 is 214110132.

231011412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231011391 and 231011400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011413) 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, 30414 + ... + 37242.

It is an arithmetic number, because the mean of its divisors is an integer number (22470700).

Almost surely, 2^231011412 is an apocalyptic number.

It is an amenable number.

231011412 is an abundant number, since it is smaller than the sum of its proper divisors (308285388).

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

231011412 is a wasteful number, since it uses less digits than its factorization.

231011412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655 (or 9653 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 231011412 is about 15199.0595761712. The cubic root of 231011412 is about 613.5893479359.

Adding to 231011412 its reverse (214110132), we get a palindrome (445121544).

The spelling of 231011412 in words is "two hundred thirty-one million, eleven thousand, four hundred twelve".