1232113031 has 4 divisors (see below), whose sum is σ = 1233732864. Its totient is φ = 1230493200.

The previous prime is 1232112997. The next prime is 1232113081. The reversal of 1232113031 is 1303112321.

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

It is a cyclic number.

It is not a de Polignac number, because 1232113031 - 2¹⁸ = 1231850887 is a prime.

It is a super-2 number, since 2×1232113031² = 3036205042320013922, 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 (1232113081) 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, 808775 + ... + 810296.

It is an arithmetic number, because the mean of its divisors is an integer number (308433216).

Almost surely, 2^1232113031 is an apocalyptic number.

1232113031 is a deficient number, since it is larger than the sum of its proper divisors (1619833).

1232113031 is an equidigital number, since it uses as much as digits as its factorization.

1232113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619832.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1232113031 is about 35101.4676473791. The cubic root of 1232113031 is about 1072.0544657367.

Adding to 1232113031 its reverse (1303112321), we get a palindrome (2535225352).

It can be divided in two parts, 12321 and 13031, that added together give a palindrome (25352).

The spelling of 1232113031 in words is "one billion, two hundred thirty-two million, one hundred thirteen thousand, thirty-one".