12020300400 has 60 divisors (see below), whose sum is σ = 38505032792. Its totient is φ = 3205413120.

The previous prime is 12020300387. The next prime is 12020300401. The reversal of 12020300400 is 400302021.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020300401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5007259 + ... + 5009658.

Almost surely, 2^12020300400 is an apocalyptic number.

12020300400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020300400 is an abundant number, since it is smaller than the sum of its proper divisors (26484732392).

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

12020300400 is a wasteful number, since it uses less digits than its factorization.

12020300400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016938 (or 10016927 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 12020300400 its reverse (400302021), we get a palindrome (12420602421).

The spelling of 12020300400 in words is "twelve billion, twenty million, three hundred thousand, four hundred".