315232131047 has 2 divisors, whose sum is σ = 315232131048. Its totient is φ = 315232131046.

The previous prime is 315232130977. The next prime is 315232131077. The reversal of 315232131047 is 740131232513.

It is a strong prime.

It is an emirp because it is prime and its reverse (740131232513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315232131047 - 2²² = 315227936743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315232131077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157616065523 + 157616065524.

It is an arithmetic number, because the mean of its divisors is an integer number (157616065524).

Almost surely, 2^315232131047 is an apocalyptic number.

315232131047 is a deficient number, since it is larger than the sum of its proper divisors (1).

315232131047 is an equidigital number, since it uses as much as digits as its factorization.

315232131047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 315232131047 in words is "three hundred fifteen billion, two hundred thirty-two million, one hundred thirty-one thousand, forty-seven".