10213109657 has 2 divisors, whose sum is σ = 10213109658. Its totient is φ = 10213109656.

The previous prime is 10213109617. The next prime is 10213109677. The reversal of 10213109657 is 75690131201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9765194761 + 447914896 = 98819^2 + 21164^2 .

It is a cyclic number.

It is not a de Polignac number, because 10213109657 - 2¹² = 10213105561 is a prime.

It is not a weakly prime, because it can be changed into another prime (10213109617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106554828 + 5106554829.

It is an arithmetic number, because the mean of its divisors is an integer number (5106554829).

Almost surely, 2^10213109657 is an apocalyptic number.

It is an amenable number.

10213109657 is a deficient number, since it is larger than the sum of its proper divisors (1).

10213109657 is an equidigital number, since it uses as much as digits as its factorization.

10213109657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 10213109657 in words is "ten billion, two hundred thirteen million, one hundred nine thousand, six hundred fifty-seven".