131200109999 has 16 divisors (see below), whose sum is σ = 153202368000. Its totient is φ = 110035230624.

The previous prime is 131200109987. The next prime is 131200110017. The reversal of 131200109999 is 999901002131.

It is a cyclic number.

It is not a de Polignac number, because 131200109999 - 2³⁶ = 62480633263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200109939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868859 + ... + 1008620.

It is an arithmetic number, because the mean of its divisors is an integer number (9575148000).

Almost surely, 2^131200109999 is an apocalyptic number.

131200109999 is a deficient number, since it is larger than the sum of its proper divisors (22002258001).

131200109999 is a wasteful number, since it uses less digits than its factorization.

131200109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877702.

The product of its (nonzero) digits is 39366, while the sum is 44.

The spelling of 131200109999 in words is "one hundred thirty-one billion, two hundred million, one hundred nine thousand, nine hundred ninety-nine".