23311321121100 has 72 divisors (see below), whose sum is σ = 67450643507520. Its totient is φ = 6216055426880.

The previous prime is 23311321121059. The next prime is 23311321121117. The reversal of 23311321121100 is 112112311332.

It is a super-2 number, since 2×23311321121100² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4472779 + ... + 8162621.

It is an arithmetic number, because the mean of its divisors is an integer number (936814493160).

Almost surely, 2^{23311321121100} is an apocalyptic number.

23311321121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311321121100 is an abundant number, since it is smaller than the sum of its proper divisors (44139322386420).

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

23311321121100 is a wasteful number, since it uses less digits than its factorization.

23311321121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710919 (or 3710912 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 23311321121100 its reverse (112112311332), we get a palindrome (23423433432432).

The spelling of 23311321121100 in words is "twenty-three trillion, three hundred eleven billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred".