123133130232 has 128 divisors (see below), whose sum is σ = 364089600000. Its totient is φ = 33953826816.

The previous prime is 123133130231. The next prime is 123133130249. The reversal of 123133130232 is 232031331321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133130231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19090144 + ... + 19096592.

It is an arithmetic number, because the mean of its divisors is an integer number (2844450000).

Almost surely, 2^123133130232 is an apocalyptic number.

123133130232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123133130232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182044800000).

123133130232 is an abundant number, since it is smaller than the sum of its proper divisors (240956469768).

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

123133130232 is a wasteful number, since it uses less digits than its factorization.

123133130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10413 (or 10409 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123133130232 its reverse (232031331321), we get a palindrome (355164461553).

The spelling of 123133130232 in words is "one hundred twenty-three billion, one hundred thirty-three million, one hundred thirty thousand, two hundred thirty-two".