23201120320 has 56 divisors (see below), whose sum is σ = 63140197824. Its totient is φ = 7954669056.

The previous prime is 23201120309. The next prime is 23201120329. The reversal of 23201120320 is 2302110232.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23201120294 and 23201120303.

It is not an unprimeable number, because it can be changed into a prime (23201120329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5176582 + ... + 5181061.

Almost surely, 2^23201120320 is an apocalyptic number.

23201120320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23201120320 is an abundant number, since it is smaller than the sum of its proper divisors (39939077504).

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

23201120320 is a wasteful number, since it uses less digits than its factorization.

23201120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10357667 (or 10357657 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23201120320 its reverse (2302110232), we get a palindrome (25503230552).

The spelling of 23201120320 in words is "twenty-three billion, two hundred one million, one hundred twenty thousand, three hundred twenty".