1232243131 has 24 divisors (see below), whose sum is σ = 1473500160. Its totient is φ = 1026909072.

The previous prime is 1232243107. The next prime is 1232243141. The reversal of 1232243131 is 1313422321.

It is not a de Polignac number, because 1232243131 - 2⁵ = 1232243099 is a prime.

It is a super-2 number, since 2×1232243131² = 3036846267793366322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232243141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502350 + ... + 504796.

It is an arithmetic number, because the mean of its divisors is an integer number (61395840).

Almost surely, 2^1232243131 is an apocalyptic number.

1232243131 is a deficient number, since it is larger than the sum of its proper divisors (241257029).

1232243131 is a wasteful number, since it uses less digits than its factorization.

1232243131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743 (or 2736 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1232243131 is about 35103.3207973263. The cubic root of 1232243131 is about 1072.0921974961.

Adding to 1232243131 its reverse (1313422321), we get a palindrome (2545665452).

The spelling of 1232243131 in words is "one billion, two hundred thirty-two million, two hundred forty-three thousand, one hundred thirty-one".