3120722748971 has 2 divisors, whose sum is σ = 3120722748972. Its totient is φ = 3120722748970.

The previous prime is 3120722748943. The next prime is 3120722748989. The reversal of 3120722748971 is 1798472270213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120722748971 is a prime.

It is not a weakly prime, because it can be changed into another prime (3120722748911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560361374485 + 1560361374486.

It is an arithmetic number, because the mean of its divisors is an integer number (1560361374486).

Almost surely, 2^{3120722748971} is an apocalyptic number.

3120722748971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120722748971 is an equidigital number, since it uses as much as digits as its factorization.

3120722748971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 3120722748971 in words is "three trillion, one hundred twenty billion, seven hundred twenty-two million, seven hundred forty-eight thousand, nine hundred seventy-one".