131013212099 has 48 divisors (see below), whose sum is σ = 173404148736. Its totient is φ = 96700063680.

The previous prime is 131013212093. The next prime is 131013212117. The reversal of 131013212099 is 990212310131.

It is a happy number.

It is not a de Polignac number, because 131013212099 - 2³⁶ = 62293735363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131013212093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1973897 + ... + 2039189.

It is an arithmetic number, because the mean of its divisors is an integer number (3612586432).

Almost surely, 2^131013212099 is an apocalyptic number.

131013212099 is a deficient number, since it is larger than the sum of its proper divisors (42390936637).

131013212099 is a wasteful number, since it uses less digits than its factorization.

131013212099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65448 (or 65437 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

It can be divided in two parts, 1310132 and 12099, that added together give a palindrome (1322231).

The spelling of 131013212099 in words is "one hundred thirty-one billion, thirteen million, two hundred twelve thousand, ninety-nine".