131323332 has 36 divisors (see below), whose sum is σ = 356450640. Its totient is φ = 37520784.

The previous prime is 131323303. The next prime is 131323349. The reversal of 131323332 is 233323131.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a junction number, because it is equal to n+sod(n) for n = 131323299 and 131323308.

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, 111082 + ... + 112257.

Almost surely, 2^131323332 is an apocalyptic number.

131323332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131323332 is an abundant number, since it is smaller than the sum of its proper divisors (225127308).

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

131323332 is a wasteful number, since it uses less digits than its factorization.

131323332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223360 (or 223351 counting only the distinct ones).

The product of its digits is 972, while the sum is 21.

The square root of 131323332 is about 11459.6392613380. The cubic root of 131323332 is about 508.2928076146.

Adding to 131323332 its reverse (233323131), we get a palindrome (364646463).

The spelling of 131323332 in words is "one hundred thirty-one million, three hundred twenty-three thousand, three hundred thirty-two".