23310111133220 has 48 divisors (see below), whose sum is σ = 52000344580800. Its totient is φ = 8752265758080.

The previous prime is 23310111133193. The next prime is 23310111133223. The reversal of 23310111133220 is 2233111101332.

It is a super-2 number, since 2×23310111133220² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23310111133223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281345726 + ... + 281428565.

It is an arithmetic number, because the mean of its divisors is an integer number (1083340512100).

Almost surely, 2^{23310111133220} is an apocalyptic number.

23310111133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23310111133220 is an abundant number, since it is smaller than the sum of its proper divisors (28690233447580).

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

23310111133220 is a wasteful number, since it uses less digits than its factorization.

23310111133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562774428 (or 562774426 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 23310111133220 its reverse (2233111101332), we get a palindrome (25543222234552).

The spelling of 23310111133220 in words is "twenty-three trillion, three hundred ten billion, one hundred eleven million, one hundred thirty-three thousand, two hundred twenty".