315232130977 has 2 divisors, whose sum is σ = 315232130978. Its totient is φ = 315232130976.

The previous prime is 315232130963. The next prime is 315232131047. The reversal of 315232130977 is 779031232513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313554081681 + 1678049296 = 559959^2 + 40964^2 .

It is a cyclic number.

It is not a de Polignac number, because 315232130977 - 2¹⁹ = 315231606689 is a prime.

It is not a weakly prime, because it can be changed into another prime (315232130947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157616065488 + 157616065489.

It is an arithmetic number, because the mean of its divisors is an integer number (157616065489).

Almost surely, 2^315232130977 is an apocalyptic number.

It is an amenable number.

315232130977 is a deficient number, since it is larger than the sum of its proper divisors (1).

315232130977 is an equidigital number, since it uses as much as digits as its factorization.

315232130977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 43.

The spelling of 315232130977 in words is "three hundred fifteen billion, two hundred thirty-two million, one hundred thirty thousand, nine hundred seventy-seven".