315434211973 has 2 divisors, whose sum is σ = 315434211974. Its totient is φ = 315434211972.

The previous prime is 315434211947. The next prime is 315434212061. The reversal of 315434211973 is 379112434513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311490120769 + 3944091204 = 558113^2 + 62802^2 .

It is a cyclic number.

It is not a de Polignac number, because 315434211973 - 2³³ = 306844277381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315434215973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157717105986 + 157717105987.

It is an arithmetic number, because the mean of its divisors is an integer number (157717105987).

Almost surely, 2^315434211973 is an apocalyptic number.

It is an amenable number.

315434211973 is a deficient number, since it is larger than the sum of its proper divisors (1).

315434211973 is an equidigital number, since it uses as much as digits as its factorization.

315434211973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The spelling of 315434211973 in words is "three hundred fifteen billion, four hundred thirty-four million, two hundred eleven thousand, nine hundred seventy-three".