131511255002 has 16 divisors (see below), whose sum is σ = 201631087080. Its totient is φ = 64308820992.

The previous prime is 131511254947. The next prime is 131511255053. The reversal of 131511255002 is 200552115131.

It can be written as a sum of positive squares in 4 ways, for example, as 66347971561 + 65163283441 = 257581^2 + 255271^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948727 + ... + 2015082.

Almost surely, 2^131511255002 is an apocalyptic number.

131511255002 is a deficient number, since it is larger than the sum of its proper divisors (70119832078).

131511255002 is a wasteful number, since it uses less digits than its factorization.

131511255002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964177.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 131511255002 in words is "one hundred thirty-one billion, five hundred eleven million, two hundred fifty-five thousand, two".