131103312020099 has 4 divisors (see below), whose sum is σ = 131103688614600. Its totient is φ = 131102935425600.

The previous prime is 131103312020053. The next prime is 131103312020123. The reversal of 131103312020099 is 990020213301131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131103312020099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131103312020599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187774574 + ... + 188471475.

It is an arithmetic number, because the mean of its divisors is an integer number (32775922153650).

Almost surely, 2^{131103312020099} is an apocalyptic number.

131103312020099 is a deficient number, since it is larger than the sum of its proper divisors (376594501).

131103312020099 is an equidigital number, since it uses as much as digits as its factorization.

131103312020099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376594500.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 131103312020099 in words is "one hundred thirty-one trillion, one hundred three billion, three hundred twelve million, twenty thousand, ninety-nine".