101040090797 has 2 divisors, whose sum is σ = 101040090798. Its totient is φ = 101040090796.

The previous prime is 101040090787. The next prime is 101040090857. The reversal of 101040090797 is 797090040101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69235291876 + 31804798921 = 263126^2 + 178339^2 .

It is an emirp because it is prime and its reverse (797090040101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101040090797 - 2¹² = 101040086701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101040090797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101040090757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50520045398 + 50520045399.

It is an arithmetic number, because the mean of its divisors is an integer number (50520045399).

Almost surely, 2^101040090797 is an apocalyptic number.

It is an amenable number.

101040090797 is a deficient number, since it is larger than the sum of its proper divisors (1).

101040090797 is an equidigital number, since it uses as much as digits as its factorization.

101040090797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The spelling of 101040090797 in words is "one hundred one billion, forty million, ninety thousand, seven hundred ninety-seven".