23310113220 has 72 divisors (see below), whose sum is σ = 72618373464. Its totient is φ = 6048027648.

The previous prime is 23310113207. The next prime is 23310113231. The reversal of 23310113220 is 2231101332.

23310113220 is a `hidden beast` number, since 2 + 331 + 0 + 11 + 322 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10488627396 + 12821485824 = 102414^2 + 113232^2 .

It is a super-2 number, since 2×23310113220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23310113193 and 23310113202.

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, 1743349 + ... + 1756668.

Almost surely, 2^23310113220 is an apocalyptic number.

23310113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23310113220 is an abundant number, since it is smaller than the sum of its proper divisors (49308260244).

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

23310113220 is a wasteful number, since it uses less digits than its factorization.

23310113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500069 (or 3500064 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23310113220 its reverse (2231101332), we get a palindrome (25541214552).

The spelling of 23310113220 in words is "twenty-three billion, three hundred ten million, one hundred thirteen thousand, two hundred twenty".