990100110997 has 2 divisors, whose sum is σ = 990100110998. Its totient is φ = 990100110996.

The previous prime is 990100110971. The next prime is 990100111003. The reversal of 990100110997 is 799011001099.

It is a happy number.

990100110997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 634453668676 + 355646442321 = 796526^2 + 596361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990100110997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990100110947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495050055498 + 495050055499.

It is an arithmetic number, because the mean of its divisors is an integer number (495050055499).

Almost surely, 2^990100110997 is an apocalyptic number.

It is an amenable number.

990100110997 is a deficient number, since it is larger than the sum of its proper divisors (1).

990100110997 is an equidigital number, since it uses as much as digits as its factorization.

990100110997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 46.

The spelling of 990100110997 in words is "nine hundred ninety billion, one hundred million, one hundred ten thousand, nine hundred ninety-seven".