123090101984597 has 4 divisors (see below), whose sum is σ = 134280111255936. Its totient is φ = 111900092713260.

The previous prime is 123090101984561. The next prime is 123090101984651. The reversal of 123090101984597 is 795489101090321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123090101984597 - 2¹² = 123090101980501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123090101984537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5595004635653 + ... + 5595004635674.

It is an arithmetic number, because the mean of its divisors is an integer number (33570027813984).

Almost surely, 2^{123090101984597} is an apocalyptic number.

It is an amenable number.

123090101984597 is a deficient number, since it is larger than the sum of its proper divisors (11190009271339).

123090101984597 is a wasteful number, since it uses less digits than its factorization.

123090101984597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11190009271338.

The product of its (nonzero) digits is 4898880, while the sum is 59.

The spelling of 123090101984597 in words is "one hundred twenty-three trillion, ninety billion, one hundred one million, nine hundred eighty-four thousand, five hundred ninety-seven".