12103122020 has 48 divisors (see below), whose sum is σ = 27835170048. Its totient is φ = 4383989760.

The previous prime is 12103122019. The next prime is 12103122049. The reversal of 12103122020 is 2022130121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12103121986 and 12103122004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50492 + ... + 163571.

It is an arithmetic number, because the mean of its divisors is an integer number (579899376).

Almost surely, 2^12103122020 is an apocalyptic number.

12103122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103122020 is an abundant number, since it is smaller than the sum of its proper divisors (15732048028).

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

12103122020 is a wasteful number, since it uses less digits than its factorization.

12103122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214340 (or 214338 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12103122020 its reverse (2022130121), we get a palindrome (14125252141).

The spelling of 12103122020 in words is "twelve billion, one hundred three million, one hundred twenty-two thousand, twenty".