3130231997 has 2 divisors, whose sum is σ = 3130231998. Its totient is φ = 3130231996.

The previous prime is 3130231939. The next prime is 3130232003. The reversal of 3130231997 is 7991320313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3092027236 + 38204761 = 55606^2 + 6181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3130231997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3130231997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3130231297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565115998 + 1565115999.

It is an arithmetic number, because the mean of its divisors is an integer number (1565115999).

Almost surely, 2^3130231997 is an apocalyptic number.

It is an amenable number.

3130231997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130231997 is an equidigital number, since it uses as much as digits as its factorization.

3130231997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 3130231997 is about 55948.4762705831. The cubic root of 3130231997 is about 1462.8243316244.

The spelling of 3130231997 in words is "three billion, one hundred thirty million, two hundred thirty-one thousand, nine hundred ninety-seven".