123033231132 has 72 divisors (see below), whose sum is σ = 334062149904. Its totient is φ = 35140267008.

The previous prime is 123033231049. The next prime is 123033231133. The reversal of 123033231132 is 231132330321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033231133) 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 23 ways as a sum of consecutive naturals, for example, 1751308 + ... + 1820204.

It is an arithmetic number, because the mean of its divisors is an integer number (4639752082).

Almost surely, 2^123033231132 is an apocalyptic number.

123033231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123033231132 is an abundant number, since it is smaller than the sum of its proper divisors (211028918772).

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

123033231132 is a wasteful number, since it uses less digits than its factorization.

123033231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71955 (or 71946 counting only the distinct ones).

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

Adding to 123033231132 its reverse (231132330321), we get a palindrome (354165561453).

The spelling of 123033231132 in words is "one hundred twenty-three billion, thirty-three million, two hundred thirty-one thousand, one hundred thirty-two".