101109992497 has 2 divisors, whose sum is σ = 101109992498. Its totient is φ = 101109992496.

The previous prime is 101109992479. The next prime is 101109992509. The reversal of 101109992497 is 794299901101.

Together with previous prime (101109992479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89044947216 + 12065045281 = 298404^2 + 109841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101109992497 is a prime.

It is not a weakly prime, because it can be changed into another prime (101109992597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50554996248 + 50554996249.

It is an arithmetic number, because the mean of its divisors is an integer number (50554996249).

Almost surely, 2^101109992497 is an apocalyptic number.

It is an amenable number.

101109992497 is a deficient number, since it is larger than the sum of its proper divisors (1).

101109992497 is an equidigital number, since it uses as much as digits as its factorization.

101109992497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 52.

The spelling of 101109992497 in words is "one hundred one billion, one hundred nine million, nine hundred ninety-two thousand, four hundred ninety-seven".