10101797521 has 2 divisors, whose sum is σ = 10101797522. Its totient is φ = 10101797520.

The previous prime is 10101797429. The next prime is 10101797543. The reversal of 10101797521 is 12579710101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7252906896 + 2848890625 = 85164^2 + 53375^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101797521 - 2²⁷ = 9967579793 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101797581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050898760 + 5050898761.

It is an arithmetic number, because the mean of its divisors is an integer number (5050898761).

Almost surely, 2^10101797521 is an apocalyptic number.

It is an amenable number.

10101797521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101797521 is an equidigital number, since it uses as much as digits as its factorization.

10101797521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4410, while the sum is 34.

The spelling of 10101797521 in words is "ten billion, one hundred one million, seven hundred ninety-seven thousand, five hundred twenty-one".