1231413031 has 16 divisors (see below), whose sum is σ = 1338882048. Its totient is φ = 1129154400.

The previous prime is 1231412977. The next prime is 1231413041. The reversal of 1231413031 is 1303141321.

It is a cyclic number.

It is not a de Polignac number, because 1231413031 - 2¹⁷ = 1231281959 is a prime.

It is a super-2 number, since 2×1231413031² = 3032756105833213922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231413041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68221 + ... + 84361.

It is an arithmetic number, because the mean of its divisors is an integer number (83680128).

Almost surely, 2^1231413031 is an apocalyptic number.

1231413031 is a deficient number, since it is larger than the sum of its proper divisors (107469017).

1231413031 is a wasteful number, since it uses less digits than its factorization.

1231413031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1231413031 is about 35091.4951377111. The cubic root of 1231413031 is about 1071.8514052849.

Adding to 1231413031 its reverse (1303141321), we get a palindrome (2534554352).

The spelling of 1231413031 in words is "one billion, two hundred thirty-one million, four hundred thirteen thousand, thirty-one".