123133233232 has 20 divisors (see below), whose sum is σ = 238611525876. Its totient is φ = 61556065280.

The previous prime is 123133233193. The next prime is 123133233257. The reversal of 123133233232 is 232332331321.

It can be written as a sum of positive squares in 2 ways, for example, as 85156577856 + 37976655376 = 291816^2 + 194876^2 .

It is a super-2 number, since 2×123133233232² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123133233232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562753 + ... + 750304.

Almost surely, 2^123133233232 is an apocalyptic number.

It is an amenable number.

123133233232 is a deficient number, since it is larger than the sum of its proper divisors (115478292644).

123133233232 is a wasteful number, since it uses less digits than its factorization.

123133233232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318926 (or 1318920 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 123133233232 its reverse (232332331321), we get a palindrome (355465564553).

The spelling of 123133233232 in words is "one hundred twenty-three billion, one hundred thirty-three million, two hundred thirty-three thousand, two hundred thirty-two".