123040431232 has 32 divisors (see below), whose sum is σ = 245148105600. Its totient is φ = 61513063680.

The previous prime is 123040431197. The next prime is 123040431233. The reversal of 123040431232 is 232134040321.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 123040431197 and 123040431206.

It is not an unprimeable number, because it can be changed into a prime (123040431233) 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 3 ways as a sum of consecutive naturals, for example, 1150869 + ... + 1253227.

It is an arithmetic number, because the mean of its divisors is an integer number (7660878300).

Almost surely, 2^123040431232 is an apocalyptic number.

It is an amenable number.

123040431232 is a deficient number, since it is larger than the sum of its proper divisors (122107674368).

123040431232 is an equidigital number, since it uses as much as digits as its factorization.

123040431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111764 (or 111752 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123040431232 its reverse (232134040321), we get a palindrome (355174471553).

The spelling of 123040431232 in words is "one hundred twenty-three billion, forty million, four hundred thirty-one thousand, two hundred thirty-two".