1056231231 has 32 divisors (see below), whose sum is σ = 1640466432. Its totient is φ = 598049760.

The previous prime is 1056231181. The next prime is 1056231247. The reversal of 1056231231 is 1321326501.

It is not a de Polignac number, because 1056231231 - 2¹⁹ = 1055706943 is a prime.

It is a super-2 number, since 2×1056231231² = 2231248826679550722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056231271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16456 + ... + 48818.

It is an arithmetic number, because the mean of its divisors is an integer number (51264576).

Almost surely, 2^1056231231 is an apocalyptic number.

1056231231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1056231231 is a deficient number, since it is larger than the sum of its proper divisors (584235201).

1056231231 is a wasteful number, since it uses less digits than its factorization.

1056231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32443.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1056231231 is about 32499.7112448711. The cubic root of 1056231231 is about 1018.4029958930.

Adding to 1056231231 its reverse (1321326501), we get a palindrome (2377557732).

The spelling of 1056231231 in words is "one billion, fifty-six million, two hundred thirty-one thousand, two hundred thirty-one".