123198573319 has 4 divisors (see below), whose sum is σ = 123279044200. Its totient is φ = 123118102440.

The previous prime is 123198573247. The next prime is 123198573397. The reversal of 123198573319 is 913375891321.

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 123198573319 - 2¹¹ = 123198571271 is a prime.

It is a super-2 number, since 2×123198573319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123198573119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40233144 + ... + 40236205.

It is an arithmetic number, because the mean of its divisors is an integer number (30819761050).

Almost surely, 2^123198573319 is an apocalyptic number.

123198573319 is a deficient number, since it is larger than the sum of its proper divisors (80470881).

123198573319 is an equidigital number, since it uses as much as digits as its factorization.

123198573319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80470880.

The product of its digits is 1224720, while the sum is 52.

The spelling of 123198573319 in words is "one hundred twenty-three billion, one hundred ninety-eight million, five hundred seventy-three thousand, three hundred nineteen".