123120100132 has 12 divisors (see below), whose sum is σ = 215462929500. Its totient is φ = 61559263136.

The previous prime is 123120100057. The next prime is 123120100157. The reversal of 123120100132 is 231001021321.

It can be written as a sum of positive squares in 2 ways, for example, as 15394357476 + 107725742656 = 124074^2 + 328216^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287994 + ... + 573742.

It is an arithmetic number, because the mean of its divisors is an integer number (17955244125).

Almost surely, 2^123120100132 is an apocalyptic number.

It is an amenable number.

123120100132 is a deficient number, since it is larger than the sum of its proper divisors (92342829368).

123120100132 is a wasteful number, since it uses less digits than its factorization.

123120100132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393470 (or 393468 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 123120100132 its reverse (231001021321), we get a palindrome (354121121453).

The spelling of 123120100132 in words is "one hundred twenty-three billion, one hundred twenty million, one hundred thousand, one hundred thirty-two".