123131122230 has 32 divisors (see below), whose sum is σ = 312897911904. Its totient is φ = 30903497216.

The previous prime is 123131122229. The next prime is 123131122241. The reversal of 123131122230 is 32221131321.

It is a super-2 number, since 2×123131122230² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123131122197 and 123131122206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120716277 + ... + 120717296.

It is an arithmetic number, because the mean of its divisors is an integer number (9778059747).

Almost surely, 2^123131122230 is an apocalyptic number.

123131122230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123131122230 is an abundant number, since it is smaller than the sum of its proper divisors (189766789674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123131122230 is a wasteful number, since it uses less digits than its factorization.

123131122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241433600.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123131122230 its reverse (32221131321), we get a palindrome (155352253551).

Subtracting from 123131122230 its reverse (32221131321), we obtain a palindrome (90909990909).

The spelling of 123131122230 in words is "one hundred twenty-three billion, one hundred thirty-one million, one hundred twenty-two thousand, two hundred thirty".