122517896723 has 4 divisors (see below), whose sum is σ = 122522734920. Its totient is φ = 122513058528.

The previous prime is 122517896719. The next prime is 122517896903. The reversal of 122517896723 is 327698715221.

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 122517896723 - 2² = 122517896719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122517896713) 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, 2380913 + ... + 2431826.

It is an arithmetic number, because the mean of its divisors is an integer number (30630683730).

Almost surely, 2^122517896723 is an apocalyptic number.

122517896723 is a deficient number, since it is larger than the sum of its proper divisors (4838197).

122517896723 is an equidigital number, since it uses as much as digits as its factorization.

122517896723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838196.

The product of its digits is 2540160, while the sum is 53.

The spelling of 122517896723 in words is "one hundred twenty-two billion, five hundred seventeen million, eight hundred ninety-six thousand, seven hundred twenty-three".