12100311020 has 24 divisors (see below), whose sum is σ = 29040746784. Its totient is φ = 4148678016.

The previous prime is 12100311011. The next prime is 12100311023. The reversal of 12100311020 is 2011300121.

It is a junction number, because it is equal to n+sod(n) for n = 12100310992 and 12100311010.

It is not an unprimeable number, because it can be changed into a prime (12100311023) 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, 43215257 + ... + 43215536.

It is an arithmetic number, because the mean of its divisors is an integer number (1210031116).

Almost surely, 2^12100311020 is an apocalyptic number.

12100311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100311020 is an abundant number, since it is smaller than the sum of its proper divisors (16940435764).

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

12100311020 is a wasteful number, since it uses less digits than its factorization.

12100311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86430809 (or 86430807 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12100311020 its reverse (2011300121), we get a palindrome (14111611141).

The spelling of 12100311020 in words is "twelve billion, one hundred million, three hundred eleven thousand, twenty".