131940364819 has 2 divisors, whose sum is σ = 131940364820. Its totient is φ = 131940364818.

The previous prime is 131940364799. The next prime is 131940364841. The reversal of 131940364819 is 918463049131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131940364819 is a prime.

It is a super-2 number, since 2×131940364819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131940365819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65970182409 + 65970182410.

It is an arithmetic number, because the mean of its divisors is an integer number (65970182410).

Almost surely, 2^131940364819 is an apocalyptic number.

131940364819 is a deficient number, since it is larger than the sum of its proper divisors (1).

131940364819 is an equidigital number, since it uses as much as digits as its factorization.

131940364819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 131940364819 in words is "one hundred thirty-one billion, nine hundred forty million, three hundred sixty-four thousand, eight hundred nineteen".