123198023371 has 4 divisors (see below), whose sum is σ = 125522514432. Its totient is φ = 120873532312.

The previous prime is 123198023363. The next prime is 123198023393. The reversal of 123198023371 is 173320891321.

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 123198023371 - 2³ = 123198023363 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123198023471) 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, 1162245451 + ... + 1162245556.

It is an arithmetic number, because the mean of its divisors is an integer number (31380628608).

Almost surely, 2^123198023371 is an apocalyptic number.

123198023371 is a deficient number, since it is larger than the sum of its proper divisors (2324491061).

123198023371 is an equidigital number, since it uses as much as digits as its factorization.

123198023371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324491060.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 123198023371 in words is "one hundred twenty-three billion, one hundred ninety-eight million, twenty-three thousand, three hundred seventy-one".