123313032 has 48 divisors (see below), whose sum is σ = 334505340. Its totient is φ = 41038848.

The previous prime is 123313027. The next prime is 123313049. The reversal of 123313032 is 230313321.

It can be written as a sum of positive squares in 2 ways, for example, as 123076836 + 236196 = 11094^2 + 486^2 .

It is a super-2 number, since 2×123313032² = 30412207722066048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123312996 and 123313014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69468 + ... + 71220.

Almost surely, 2^123313032 is an apocalyptic number.

123313032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123313032 is an abundant number, since it is smaller than the sum of its proper divisors (211192308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123313032 is a wasteful number, since it uses less digits than its factorization.

123313032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 123313032 is about 11104.6401112328. The cubic root of 123313032 is about 497.7405141612.

Adding to 123313032 its reverse (230313321), we get a palindrome (353626353).

The spelling of 123313032 in words is "one hundred twenty-three million, three hundred thirteen thousand, thirty-two".