131023600 has 30 divisors (see below), whose sum is σ = 314785160. Its totient is φ = 52409280.

The previous prime is 131023553. The next prime is 131023603. The reversal of 131023600 is 6320131.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023603) 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, 163380 + ... + 164179.

Almost surely, 2^131023600 is an apocalyptic number.

131023600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131023600 is an abundant number, since it is smaller than the sum of its proper divisors (183761560).

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

131023600 is a wasteful number, since it uses less digits than its factorization.

131023600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327577 (or 327566 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131023600 is about 11446.5540666176. The cubic root of 131023600 is about 507.9058043465.

Adding to 131023600 its reverse (6320131), we get a palindrome (137343731).

The spelling of 131023600 in words is "one hundred thirty-one million, twenty-three thousand, six hundred".