100131770357431 has 2 divisors, whose sum is σ = 100131770357432. Its totient is φ = 100131770357430.

The previous prime is 100131770357419. The next prime is 100131770357461. The reversal of 100131770357431 is 134753077131001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100131770357431 - 2²⁹ = 100131233486519 is a prime.

It is a super-2 number, since 2×100131770357431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100131770357461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50065885178715 + 50065885178716.

It is an arithmetic number, because the mean of its divisors is an integer number (50065885178716).

Almost surely, 2^{100131770357431} is an apocalyptic number.

100131770357431 is a deficient number, since it is larger than the sum of its proper divisors (1).

100131770357431 is an equidigital number, since it uses as much as digits as its factorization.

100131770357431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185220, while the sum is 43.

The spelling of 100131770357431 in words is "one hundred trillion, one hundred thirty-one billion, seven hundred seventy million, three hundred fifty-seven thousand, four hundred thirty-one".