23120221203320 has 128 divisors (see below), whose sum is σ = 57490262697600. Its totient is φ = 8323482157056.

The previous prime is 23120221203263. The next prime is 23120221203433. The reversal of 23120221203320 is 2330212202132.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

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, 60633902 + ... + 61014018.

It is an arithmetic number, because the mean of its divisors is an integer number (449142677325).

Almost surely, 2^{23120221203320} is an apocalyptic number.

23120221203320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23120221203320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28745131348800).

23120221203320 is an abundant number, since it is smaller than the sum of its proper divisors (34370041494280).

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

23120221203320 is a wasteful number, since it uses less digits than its factorization.

23120221203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384057 (or 384053 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23120221203320 its reverse (2330212202132), we get a palindrome (25450433405452).

The spelling of 23120221203320 in words is "twenty-three trillion, one hundred twenty billion, two hundred twenty-one million, two hundred three thousand, three hundred twenty".