231011456 has 32 divisors (see below), whose sum is σ = 495623100. Its totient is φ = 106619904.

The previous prime is 231011449. The next prime is 231011479. The reversal of 231011456 is 654110132.

231011456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 212693056 + 18318400 = 14584^2 + 4280^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 67751 + ... + 71078.

Almost surely, 2^231011456 is an apocalyptic number.

231011456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

231011456 is an abundant number, since it is smaller than the sum of its proper divisors (264611644).

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

231011456 is a wasteful number, since it uses less digits than its factorization.

231011456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138856 (or 138844 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 231011456 is about 15199.0610236291. The cubic root of 231011456 is about 613.5893868921.

Adding to 231011456 its reverse (654110132), we get a palindrome (885121588).

The spelling of 231011456 in words is "two hundred thirty-one million, eleven thousand, four hundred fifty-six".