316380435881 has 2 divisors, whose sum is σ = 316380435882. Its totient is φ = 316380435880.

The previous prime is 316380435823. The next prime is 316380435901. The reversal of 316380435881 is 188534083613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310091945881 + 6288490000 = 556859^2 + 79300^2 .

It is a cyclic number.

It is not a de Polignac number, because 316380435881 - 2¹⁰ = 316380434857 is a prime.

It is a super-2 number, since 2×316380435881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (316380485881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158190217940 + 158190217941.

It is an arithmetic number, because the mean of its divisors is an integer number (158190217941).

Almost surely, 2^316380435881 is an apocalyptic number.

It is an amenable number.

316380435881 is a deficient number, since it is larger than the sum of its proper divisors (1).

316380435881 is an equidigital number, since it uses as much as digits as its factorization.

316380435881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 316380435881 in words is "three hundred sixteen billion, three hundred eighty million, four hundred thirty-five thousand, eight hundred eighty-one".