123113013200 has 60 divisors (see below), whose sum is σ = 295951355148. Its totient is φ = 49216512000.

The previous prime is 123113013161. The next prime is 123113013227. The reversal of 123113013200 is 2310311321.

It can be written as a sum of positive squares in 6 ways, for example, as 19495978384 + 103617034816 = 139628^2 + 321896^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604400 + ... + 782000.

Almost surely, 2^123113013200 is an apocalyptic number.

123113013200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123113013200 is an abundant number, since it is smaller than the sum of its proper divisors (172838341948).

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

123113013200 is a wasteful number, since it uses less digits than its factorization.

123113013200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179352 (or 179341 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123113013200 its reverse (2310311321), we get a palindrome (125423324521).

The spelling of 123113013200 in words is "one hundred twenty-three billion, one hundred thirteen million, thirteen thousand, two hundred".