123133870231 has 4 divisors (see below), whose sum is σ = 123139547352. Its totient is φ = 123128193112.

The previous prime is 123133870201. The next prime is 123133870241. The reversal of 123133870231 is 132078331321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132078331321 = 17977 ⋅7347073.

It is a cyclic number.

It is not a de Polignac number, because 123133870231 - 2⁷ = 123133870103 is a prime.

It is a super-2 number, since 2×123133870231² (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 (123133870201) 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, 2805901 + ... + 2849446.

It is an arithmetic number, because the mean of its divisors is an integer number (30784886838).

Almost surely, 2^123133870231 is an apocalyptic number.

123133870231 is a deficient number, since it is larger than the sum of its proper divisors (5677121).

123133870231 is an equidigital number, since it uses as much as digits as its factorization.

123133870231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677120.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 123133870231 in words is "one hundred twenty-three billion, one hundred thirty-three million, eight hundred seventy thousand, two hundred thirty-one".