101971431769 has 2 divisors, whose sum is σ = 101971431770. Its totient is φ = 101971431768.

The previous prime is 101971431739. The next prime is 101971431773. The reversal of 101971431769 is 967134179101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96246996169 + 5724435600 = 310237^2 + 75660^2 .

It is a cyclic number.

It is not a de Polignac number, because 101971431769 - 2⁷ = 101971431641 is a prime.

It is a super-2 number, since 2×101971431769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101971431739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50985715884 + 50985715885.

It is an arithmetic number, because the mean of its divisors is an integer number (50985715885).

Almost surely, 2^101971431769 is an apocalyptic number.

It is an amenable number.

101971431769 is a deficient number, since it is larger than the sum of its proper divisors (1).

101971431769 is an equidigital number, since it uses as much as digits as its factorization.

101971431769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 101971431769 in words is "one hundred one billion, nine hundred seventy-one million, four hundred thirty-one thousand, seven hundred sixty-nine".