131012221402091 has 16 divisors (see below), whose sum is σ = 131864958382080. Its totient is φ = 130160312341920.

The previous prime is 131012221402079. The next prime is 131012221402177. The reversal of 131012221402091 is 190204122210131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131012221402091 is a prime.

It is a super-2 number, since 2×131012221402091² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131012221402691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3585330281 + ... + 3585366821.

It is an arithmetic number, because the mean of its divisors is an integer number (8241559898880).

Almost surely, 2^{131012221402091} is an apocalyptic number.

131012221402091 is a deficient number, since it is larger than the sum of its proper divisors (852736979989).

131012221402091 is a wasteful number, since it uses less digits than its factorization.

131012221402091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47234.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 131012221402091 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-one million, four hundred two thousand, ninety-one".