3123313997 has 2 divisors, whose sum is σ = 3123313998. Its totient is φ = 3123313996.

The previous prime is 3123313981. The next prime is 3123314017. The reversal of 3123313997 is 7993133213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2811226441 + 312087556 = 53021^2 + 17666^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123313997 - 2⁴ = 3123313981 is a prime.

It is a super-2 number, since 2×3123313997² = 19510180647712232018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123313937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561656998 + 1561656999.

It is an arithmetic number, because the mean of its divisors is an integer number (1561656999).

Almost surely, 2^3123313997 is an apocalyptic number.

It is an amenable number.

3123313997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123313997 is an equidigital number, since it uses as much as digits as its factorization.

3123313997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 41.

The square root of 3123313997 is about 55886.6173336694. The cubic root of 3123313997 is about 1461.7458936643.

The spelling of 3123313997 in words is "three billion, one hundred twenty-three million, three hundred thirteen thousand, nine hundred ninety-seven".