123131332 has 24 divisors (see below), whose sum is σ = 224363160. Its totient is φ = 59055360.

The previous prime is 123131329. The next prime is 123131339. The reversal of 123131332 is 233131321.

It can be written as a sum of positive squares in 4 ways, for example, as 24049216 + 99082116 = 4904^2 + 9954^2 .

It is a super-2 number, since 2×123131332² = 30322649840188448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123131339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14832 + ... + 21592.

It is an arithmetic number, because the mean of its divisors is an integer number (9348465).

Almost surely, 2^123131332 is an apocalyptic number.

It is an amenable number.

123131332 is a deficient number, since it is larger than the sum of its proper divisors (101231828).

123131332 is a wasteful number, since it uses less digits than its factorization.

123131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951 (or 6949 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 123131332 is about 11096.4558305794. The cubic root of 123131332 is about 497.4959227968.

Adding to 123131332 its reverse (233131321), we get a palindrome (356262653).

The spelling of 123131332 in words is "one hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty-two".