1232031431 has 4 divisors (see below), whose sum is σ = 1244229864. Its totient is φ = 1219833000.

The previous prime is 1232031413. The next prime is 1232031503. The reversal of 1232031431 is 1341302321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232031431 is a prime.

It is a super-2 number, since 2×1232031431² = 3035802893943815522, 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 (1232031401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6099065 + ... + 6099266.

It is an arithmetic number, because the mean of its divisors is an integer number (311057466).

Almost surely, 2^1232031431 is an apocalyptic number.

1232031431 is a deficient number, since it is larger than the sum of its proper divisors (12198433).

1232031431 is a wasteful number, since it uses less digits than its factorization.

1232031431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12198432.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1232031431 is about 35100.3052835727. The cubic root of 1232031431 is about 1072.0307986506.

Adding to 1232031431 its reverse (1341302321), we get a palindrome (2573333752).

The spelling of 1232031431 in words is "one billion, two hundred thirty-two million, thirty-one thousand, four hundred thirty-one".