1232313131 has 8 divisors (see below), whose sum is σ = 1419448320. Its totient is φ = 1047950568.

The previous prime is 1232313127. The next prime is 1232313161. The reversal of 1232313131 is 1313132321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1232313131 - 2² = 1232313127 is a prime.

It is a super-2 number, since 2×1232313131² = 3037191305670046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232313101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692201 + ... + 693978.

It is an arithmetic number, because the mean of its divisors is an integer number (177431040).

Almost surely, 2^1232313131 is an apocalyptic number.

1232313131 is a deficient number, since it is larger than the sum of its proper divisors (187135189).

1232313131 is a wasteful number, since it uses less digits than its factorization.

1232313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386313.

The product of its digits is 324, while the sum is 20.

The square root of 1232313131 is about 35104.3178398328. The cubic root of 1232313131 is about 1072.1124978819.

Adding to 1232313131 its reverse (1313132321), we get a palindrome (2545445452).

The spelling of 1232313131 in words is "one billion, two hundred thirty-two million, three hundred thirteen thousand, one hundred thirty-one".