131620265400 has 192 divisors, whose sum is σ = 440027773920. Its totient is φ = 32353228800.

The previous prime is 131620265393. The next prime is 131620265407. The reversal of 131620265400 is 4562026131.

131620265400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (131620265393) and next prime (131620265407).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131620265407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5705890 + ... + 5728910.

Almost surely, 2^131620265400 is an apocalyptic number.

131620265400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131620265400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220013886960).

131620265400 is an abundant number, since it is smaller than the sum of its proper divisors (308407508520).

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

131620265400 is a wasteful number, since it uses less digits than its factorization.

131620265400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23786 (or 23777 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 131620265400 in words is "one hundred thirty-one billion, six hundred twenty million, two hundred sixty-five thousand, four hundred".