202311000120 has 128 divisors (see below), whose sum is σ = 633872355840. Its totient is φ = 51559073280.

The previous prime is 202311000041. The next prime is 202311000131. The reversal of 202311000120 is 21000113202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202311000096 and 202311000105.

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, 3200662 + ... + 3263258.

It is an arithmetic number, because the mean of its divisors is an integer number (4952127780).

Almost surely, 2^202311000120 is an apocalyptic number.

202311000120 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 202311000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316936177920).

202311000120 is an abundant number, since it is smaller than the sum of its proper divisors (431561355720).

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

202311000120 is a wasteful number, since it uses less digits than its factorization.

202311000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63805 (or 63801 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 202311000120 its reverse (21000113202), we get a palindrome (223311113322).

The spelling of 202311000120 in words is "two hundred two billion, three hundred eleven million, one hundred twenty", and thus it is an aban number.