3131520001 has 2 divisors, whose sum is σ = 3131520002. Its totient is φ = 3131520000.

The previous prime is 3131519987. The next prime is 3131520011. The reversal of 3131520001 is 1000251313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2819079025 + 312440976 = 53095^2 + 17676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131520001 is a prime.

It is not a weakly prime, because it can be changed into another prime (3131520011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565760000 + 1565760001.

It is an arithmetic number, because the mean of its divisors is an integer number (1565760001).

Almost surely, 2^3131520001 is an apocalyptic number.

It is an amenable number.

3131520001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131520001 is an equidigital number, since it uses as much as digits as its factorization.

3131520001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 3131520001 is about 55959.9857130075. The cubic root of 3131520001 is about 1463.0249413800.

Adding to 3131520001 its reverse (1000251313), we get a palindrome (4131771314).

The spelling of 3131520001 in words is "three billion, one hundred thirty-one million, five hundred twenty thousand, one".