13023122220 has 96 divisors (see below), whose sum is σ = 41913547200. Its totient is φ = 3353075712.

The previous prime is 13023122213. The next prime is 13023122239. The reversal of 13023122220 is 2222132031.

13023122220 is a `hidden beast` number, since 130 + 2 + 312 + 2 + 220 = 666.

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 = 13023122193 and 13023122202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400149 + ... + 431468.

It is an arithmetic number, because the mean of its divisors is an integer number (436599450).

Almost surely, 2^13023122220 is an apocalyptic number.

13023122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023122220 is an abundant number, since it is smaller than the sum of its proper divisors (28890424980).

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

13023122220 is a wasteful number, since it uses less digits than its factorization.

13023122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831664 (or 831656 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13023122220 its reverse (2222132031), we get a palindrome (15245254251).

The spelling of 13023122220 in words is "thirteen billion, twenty-three million, one hundred twenty-two thousand, two hundred twenty".