2112021475913 has 2 divisors, whose sum is σ = 2112021475914. Its totient is φ = 2112021475912.

The previous prime is 2112021475897. The next prime is 2112021475937. The reversal of 2112021475913 is 3195741202112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2110619123209 + 1402352704 = 1452797^2 + 37448^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112021475913 - 2⁴ = 2112021475897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112021475813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056010737956 + 1056010737957.

It is an arithmetic number, because the mean of its divisors is an integer number (1056010737957).

Almost surely, 2^{2112021475913} is an apocalyptic number.

It is an amenable number.

2112021475913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112021475913 is an equidigital number, since it uses as much as digits as its factorization.

2112021475913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 2112021475913 in words is "two trillion, one hundred twelve billion, twenty-one million, four hundred seventy-five thousand, nine hundred thirteen".