123113033231 has 8 divisors (see below), whose sum is σ = 124604780160. Its totient is φ = 121621487832.

The previous prime is 123113033209. The next prime is 123113033273. The reversal of 123113033231 is 132330311321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123113033231 - 2⁶ = 123113033167 is a prime.

It is a super-2 number, since 2×123113033231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123113033197 and 123113033206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113033291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446230 + ... + 1528988.

It is an arithmetic number, because the mean of its divisors is an integer number (15575597520).

Almost surely, 2^123113033231 is an apocalyptic number.

123113033231 is a deficient number, since it is larger than the sum of its proper divisors (1491746929).

123113033231 is an equidigital number, since it uses as much as digits as its factorization.

123113033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100765.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123113033231 its reverse (132330311321), we get a palindrome (255443344552).

The spelling of 123113033231 in words is "one hundred twenty-three billion, one hundred thirteen million, thirty-three thousand, two hundred thirty-one".