10102010909 has 2 divisors, whose sum is σ = 10102010910. Its totient is φ = 10102010908.

The previous prime is 10102010899. The next prime is 10102010917. The reversal of 10102010909 is 90901020101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9960638809 + 141372100 = 99803^2 + 11890^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102010909 - 2²⁴ = 10085233693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102010939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051005454 + 5051005455.

It is an arithmetic number, because the mean of its divisors is an integer number (5051005455).

Almost surely, 2^10102010909 is an apocalyptic number.

It is an amenable number.

10102010909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102010909 is an equidigital number, since it uses as much as digits as its factorization.

10102010909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 10102010909 in words is "ten billion, one hundred two million, ten thousand, nine hundred nine".