2311220023100 has 18 divisors (see below), whose sum is σ = 5015347450344. Its totient is φ = 924488009200.

The previous prime is 2311220023087. The next prime is 2311220023111. The reversal of 2311220023100 is 13200221132.

It is a super-2 number, since 2×2311220023100² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11556100016 + ... + 11556100215.

It is an arithmetic number, because the mean of its divisors is an integer number (278630413908).

Almost surely, 2^{2311220023100} is an apocalyptic number.

2311220023100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311220023100 is an abundant number, since it is smaller than the sum of its proper divisors (2704127427244).

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

2311220023100 is a wasteful number, since it uses less digits than its factorization.

2311220023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23112200245 (or 23112200238 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2311220023100 its reverse (13200221132), we get a palindrome (2324420244232).

The spelling of 2311220023100 in words is "two trillion, three hundred eleven billion, two hundred twenty million, twenty-three thousand, one hundred".