1012331131 has 12 divisors (see below), whose sum is σ = 1228811472. Its totient is φ = 829984848.

The previous prime is 1012331129. The next prime is 1012331141. The reversal of 1012331131 is 1311332101.

It is not a de Polignac number, because 1012331131 - 2¹ = 1012331129 is a prime.

It is a super-2 number, since 2×1012331131² = 2049628637583478322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012331141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448000 + ... + 450253.

It is an arithmetic number, because the mean of its divisors is an integer number (102400956).

Almost surely, 2^1012331131 is an apocalyptic number.

1012331131 is a deficient number, since it is larger than the sum of its proper divisors (216480341).

1012331131 is an equidigital number, since it uses as much as digits as its factorization.

1012331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898290 (or 898283 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1012331131 is about 31817.1515224100. The cubic root of 1012331131 is about 1004.0935966007.

Adding to 1012331131 its reverse (1311332101), we get a palindrome (2323663232).

The spelling of 1012331131 in words is "one billion, twelve million, three hundred thirty-one thousand, one hundred thirty-one".