131402051887 has 2 divisors, whose sum is σ = 131402051888. Its totient is φ = 131402051886.

The previous prime is 131402051857. The next prime is 131402051899. The reversal of 131402051887 is 788150204131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131402051887 - 2¹¹ = 131402049839 is a prime.

It is a super-2 number, since 2×131402051887² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131402051857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701025943 + 65701025944.

It is an arithmetic number, because the mean of its divisors is an integer number (65701025944).

Almost surely, 2^131402051887 is an apocalyptic number.

131402051887 is a deficient number, since it is larger than the sum of its proper divisors (1).

131402051887 is an equidigital number, since it uses as much as digits as its factorization.

131402051887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 131402051887 in words is "one hundred thirty-one billion, four hundred two million, fifty-one thousand, eight hundred eighty-seven".