316375432421 has 2 divisors, whose sum is σ = 316375432422. Its totient is φ = 316375432420.

The previous prime is 316375432403. The next prime is 316375432453. The reversal of 316375432421 is 124234573613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264798751396 + 51576681025 = 514586^2 + 227105^2 .

It is a cyclic number.

It is not a de Polignac number, because 316375432421 - 2¹⁸ = 316375170277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316375432481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158187716210 + 158187716211.

It is an arithmetic number, because the mean of its divisors is an integer number (158187716211).

Almost surely, 2^316375432421 is an apocalyptic number.

It is an amenable number.

316375432421 is a deficient number, since it is larger than the sum of its proper divisors (1).

316375432421 is an equidigital number, since it uses as much as digits as its factorization.

316375432421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 41.

The spelling of 316375432421 in words is "three hundred sixteen billion, three hundred seventy-five million, four hundred thirty-two thousand, four hundred twenty-one".