131216291202 has 24 divisors (see below), whose sum is σ = 262693681488. Its totient is φ = 43695290320.

The previous prime is 131216291183. The next prime is 131216291231. The reversal of 131216291202 is 202192612131.

It is a self number, because there is not a number n which added to its sum of digits gives 131216291202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6744613 + ... + 6764039.

It is an arithmetic number, because the mean of its divisors is an integer number (10945570062).

Almost surely, 2^131216291202 is an apocalyptic number.

131216291202 is an abundant number, since it is smaller than the sum of its proper divisors (131477390286).

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

131216291202 is an equidigital number, since it uses as much as digits as its factorization.

131216291202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21554 (or 20493 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 131216291202 in words is "one hundred thirty-one billion, two hundred sixteen million, two hundred ninety-one thousand, two hundred two".