109597115923 has 4 divisors (see below), whose sum is σ = 109629903328. Its totient is φ = 109564328520.

The previous prime is 109597115917. The next prime is 109597115933. The reversal of 109597115923 is 329511795901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109597115923 - 2¹³ = 109597107731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109597115933) 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, 16388688 + ... + 16395373.

It is an arithmetic number, because the mean of its divisors is an integer number (27407475832).

Almost surely, 2^109597115923 is an apocalyptic number.

109597115923 is a deficient number, since it is larger than the sum of its proper divisors (32787405).

109597115923 is an equidigital number, since it uses as much as digits as its factorization.

109597115923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32787404.

The product of its (nonzero) digits is 765450, while the sum is 52.

The spelling of 109597115923 in words is "one hundred nine billion, five hundred ninety-seven million, one hundred fifteen thousand, nine hundred twenty-three".