3121323017 has 2 divisors, whose sum is σ = 3121323018. Its totient is φ = 3121323016.

The previous prime is 3121323013. The next prime is 3121323043. The reversal of 3121323017 is 7103231213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1685595136 + 1435727881 = 41056^2 + 37891^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121323017 - 2² = 3121323013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121322983 and 3121323001.

It is not a weakly prime, because it can be changed into another prime (3121323013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560661508 + 1560661509.

It is an arithmetic number, because the mean of its divisors is an integer number (1560661509).

Almost surely, 2^3121323017 is an apocalyptic number.

It is an amenable number.

3121323017 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121323017 is an equidigital number, since it uses as much as digits as its factorization.

3121323017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 3121323017 is about 55868.8018217681. The cubic root of 3121323017 is about 1461.4352273379.

The spelling of 3121323017 in words is "three billion, one hundred twenty-one million, three hundred twenty-three thousand, seventeen".