1200020030999 has 4 divisors (see below), whose sum is σ = 1200044835936. Its totient is φ = 1199995226064.

The previous prime is 1200020030879. The next prime is 1200020031053. The reversal of 1200020030999 is 9990300200021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200020030999 - 2²⁴ = 1200003253783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200020080999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12329759 + ... + 12426704.

It is an arithmetic number, because the mean of its divisors is an integer number (300011208984).

Almost surely, 2^{1200020030999} is an apocalyptic number.

1200020030999 is a deficient number, since it is larger than the sum of its proper divisors (24804937).

1200020030999 is an equidigital number, since it uses as much as digits as its factorization.

1200020030999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804936.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 1200020030999 in words is "one trillion, two hundred billion, twenty million, thirty thousand, nine hundred ninety-nine".