12031201020 has 24 divisors (see below), whose sum is σ = 33687363024. Its totient is φ = 3208320256.

The previous prime is 12031200959. The next prime is 12031201027. The reversal of 12031201020 is 2010213021.

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 = 12031200987 and 12031201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031201027) 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, 100259949 + ... + 100260068.

It is an arithmetic number, because the mean of its divisors is an integer number (1403640126).

Almost surely, 2^12031201020 is an apocalyptic number.

12031201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031201020 is an abundant number, since it is smaller than the sum of its proper divisors (21656162004).

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

12031201020 is a wasteful number, since it uses less digits than its factorization.

12031201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200520029 (or 200520027 counting only the distinct ones).

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

Adding to 12031201020 its reverse (2010213021), we get a palindrome (14041414041).

The spelling of 12031201020 in words is "twelve billion, thirty-one million, two hundred one thousand, twenty".