123231011130 has 48 divisors (see below), whose sum is σ = 320425081704. Its totient is φ = 32859095040.

The previous prime is 123231011063. The next prime is 123231011161. The reversal of 123231011130 is 31110132321.

It can be written as a sum of positive squares in 4 ways, for example, as 122757034689 + 473976441 = 350367^2 + 21771^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1337922 + ... + 1427058.

Almost surely, 2^123231011130 is an apocalyptic number.

123231011130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231011130 is an abundant number, since it is smaller than the sum of its proper divisors (197194070574).

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

123231011130 is a wasteful number, since it uses less digits than its factorization.

123231011130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104511 (or 104508 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123231011130 its reverse (31110132321), we get a palindrome (154341143451).

The spelling of 123231011130 in words is "one hundred twenty-three billion, two hundred thirty-one million, eleven thousand, one hundred thirty".