212013020957 has 2 divisors, whose sum is σ = 212013020958. Its totient is φ = 212013020956.

The previous prime is 212013020929. The next prime is 212013020981. The reversal of 212013020957 is 759020310212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144659276281 + 67353744676 = 380341^2 + 259526^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013020957 - 2¹⁸ = 212012758813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013025957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006510478 + 106006510479.

It is an arithmetic number, because the mean of its divisors is an integer number (106006510479).

Almost surely, 2^212013020957 is an apocalyptic number.

It is an amenable number.

212013020957 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013020957 is an equidigital number, since it uses as much as digits as its factorization.

212013020957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 212013020957 in words is "two hundred twelve billion, thirteen million, twenty thousand, nine hundred fifty-seven".