3021210172961 has 2 divisors, whose sum is σ = 3021210172962. Its totient is φ = 3021210172960.

The previous prime is 3021210172949. The next prime is 3021210173029. The reversal of 3021210172961 is 1692710121203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2699103981025 + 322106191936 = 1642895^2 + 567544^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021210172961 - 2²² = 3021205978657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3021210172261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510605086480 + 1510605086481.

It is an arithmetic number, because the mean of its divisors is an integer number (1510605086481).

Almost surely, 2^{3021210172961} is an apocalyptic number.

It is an amenable number.

3021210172961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021210172961 is an equidigital number, since it uses as much as digits as its factorization.

3021210172961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 3021210172961 in words is "three trillion, twenty-one billion, two hundred ten million, one hundred seventy-two thousand, nine hundred sixty-one".