131573344400 has 30 divisors (see below), whose sum is σ = 316104960882. Its totient is φ = 52629337600.

The previous prime is 131573344379. The next prime is 131573344403. The reversal of 131573344400 is 4443375131.

It can be written as a sum of positive squares in 3 ways, for example, as 390299536 + 131183044864 = 19756^2 + 362192^2 .

It is a super-2 number, since 2×131573344400² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131573344403) 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, 164466281 + ... + 164467080.

Almost surely, 2^131573344400 is an apocalyptic number.

131573344400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131573344400 is an abundant number, since it is smaller than the sum of its proper divisors (184531616482).

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

131573344400 is a wasteful number, since it uses less digits than its factorization.

131573344400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328933379 (or 328933368 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 131573344400 in words is "one hundred thirty-one billion, five hundred seventy-three million, three hundred forty-four thousand, four hundred".