1200020200983 has 16 divisors (see below), whose sum is σ = 1777987154400. Its totient is φ = 799932715200.

The previous prime is 1200020200943. The next prime is 1200020200997. The reversal of 1200020200983 is 3890020200021.

It is a happy number.

It is not a de Polignac number, because 1200020200983 - 2³⁶ = 1131300724247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200020200903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970068 + ... + 2506233.

It is an arithmetic number, because the mean of its divisors is an integer number (111124197150).

Almost surely, 2^{1200020200983} is an apocalyptic number.

1200020200983 is a deficient number, since it is larger than the sum of its proper divisors (577966953417).

1200020200983 is an equidigital number, since it uses as much as digits as its factorization.

1200020200983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486239 (or 4486233 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 1200020200983 in words is "one trillion, two hundred billion, twenty million, two hundred thousand, nine hundred eighty-three".