12203031020 has 24 divisors (see below), whose sum is σ = 25759152384. Its totient is φ = 4855919616.

The previous prime is 12203031019. The next prime is 12203031031. The reversal of 12203031020 is 2013030221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12203030986 and 12203031004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576844 + ... + 1584563.

It is an arithmetic number, because the mean of its divisors is an integer number (1073298016).

Almost surely, 2^12203031020 is an apocalyptic number.

12203031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203031020 is an abundant number, since it is smaller than the sum of its proper divisors (13556121364).

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

12203031020 is a wasteful number, since it uses less digits than its factorization.

12203031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161609 (or 3161607 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12203031020 its reverse (2013030221), we get a palindrome (14216061241).

The spelling of 12203031020 in words is "twelve billion, two hundred three million, thirty-one thousand, twenty".