1200131320020 has 24 divisors (see below), whose sum is σ = 3360367696224. Its totient is φ = 320035018656.

The previous prime is 1200131320013. The next prime is 1200131320043. The reversal of 1200131320020 is 200231310021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 10001094274 + ... + 10001094393.

It is an arithmetic number, because the mean of its divisors is an integer number (140015320676).

Almost surely, 2^{1200131320020} is an apocalyptic number.

1200131320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200131320020 is an abundant number, since it is smaller than the sum of its proper divisors (2160236376204).

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

1200131320020 is a wasteful number, since it uses less digits than its factorization.

1200131320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002188679 (or 20002188677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1200131320020 its reverse (200231310021), we get a palindrome (1400362630041).

Subtracting from 1200131320020 its reverse (200231310021), we obtain a palindrome (999900009999).

The spelling of 1200131320020 in words is "one trillion, two hundred billion, one hundred thirty-one million, three hundred twenty thousand, twenty".