131869916923 has 2 divisors, whose sum is σ = 131869916924. Its totient is φ = 131869916922.

The previous prime is 131869916837. The next prime is 131869916953. The reversal of 131869916923 is 329619968131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131869916923 is a prime.

It is not a weakly prime, because it can be changed into another prime (131869916953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65934958461 + 65934958462.

It is an arithmetic number, because the mean of its divisors is an integer number (65934958462).

Almost surely, 2^131869916923 is an apocalyptic number.

131869916923 is a deficient number, since it is larger than the sum of its proper divisors (1).

131869916923 is an equidigital number, since it uses as much as digits as its factorization.

131869916923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 58.

The spelling of 131869916923 in words is "one hundred thirty-one billion, eight hundred sixty-nine million, nine hundred sixteen thousand, nine hundred twenty-three".