12031101020 has 24 divisors (see below), whose sum is σ = 25270784784. Its totient is φ = 4811398016.

The previous prime is 12031101001. The next prime is 12031101029. The reversal of 12031101020 is 2010113021.

It is a junction number, because it is equal to n+sod(n) for n = 12031100992 and 12031101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031101029) 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, 33107 + ... + 158613.

It is an arithmetic number, because the mean of its divisors is an integer number (1052949366).

Almost surely, 2^12031101020 is an apocalyptic number.

12031101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031101020 is an abundant number, since it is smaller than the sum of its proper divisors (13239683764).

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

12031101020 is a wasteful number, since it uses less digits than its factorization.

12031101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130309 (or 130307 counting only the distinct ones).

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

Adding to 12031101020 its reverse (2010113021), we get a palindrome (14041214041).

The spelling of 12031101020 in words is "twelve billion, thirty-one million, one hundred one thousand, twenty".