23013213201220 has 48 divisors (see below), whose sum is σ = 52721605290816. Its totient is φ = 8368373552000.

The previous prime is 23013213201133. The next prime is 23013213201229. The reversal of 23013213201220 is 2210231231032.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23013213201191 and 23013213201200.

It is not an unprimeable number, because it can be changed into a prime (23013213201229) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32787150 + ... + 33481690.

It is an arithmetic number, because the mean of its divisors is an integer number (1098366776892).

Almost surely, 2^{23013213201220} is an apocalyptic number.

23013213201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23013213201220 is an abundant number, since it is smaller than the sum of its proper divisors (29708392089596).

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

23013213201220 is a wasteful number, since it uses less digits than its factorization.

23013213201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845172 (or 845170 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23013213201220 its reverse (2210231231032), we get a palindrome (25223444432252).

The spelling of 23013213201220 in words is "twenty-three trillion, thirteen billion, two hundred thirteen million, two hundred one thousand, two hundred twenty".