20123313200 has 60 divisors (see below), whose sum is σ = 49374949920. Its totient is φ = 7878055680.

The previous prime is 20123313187. The next prime is 20123313271. The reversal of 20123313200 is 231332102.

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, 516395 + ... + 553994.

It is an arithmetic number, because the mean of its divisors is an integer number (822915832).

Almost surely, 2^20123313200 is an apocalyptic number.

20123313200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123313200 is an abundant number, since it is smaller than the sum of its proper divisors (29251636720).

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

20123313200 is a wasteful number, since it uses less digits than its factorization.

20123313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070454 (or 1070443 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20123313200 its reverse (231332102), we get a palindrome (20354645302).

The spelling of 20123313200 in words is "twenty billion, one hundred twenty-three million, three hundred thirteen thousand, two hundred".