13123332 has 18 divisors (see below), whose sum is σ = 33172958. Its totient is φ = 4374432.

The previous prime is 13123307. The next prime is 13123339. The reversal of 13123332 is 23332131.

It can be written as a sum of positive squares in only one way, i.e., 11943936 + 1179396 = 3456^2 + 1086^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13123339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182233 + ... + 182304.

Almost surely, 2^13123332 is an apocalyptic number.

13123332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13123332 is an abundant number, since it is smaller than the sum of its proper divisors (20049626).

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

13123332 is a wasteful number, since it uses less digits than its factorization.

13123332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364547 (or 364542 counting only the distinct ones).

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

The square root of 13123332 is about 3622.6139733623. The cubic root of 13123332 is about 235.8747060673.

Adding to 13123332 its reverse (23332131), we get a palindrome (36455463).

The spelling of 13123332 in words is "thirteen million, one hundred twenty-three thousand, three hundred thirty-two".