1200102001983 has 12 divisors (see below), whose sum is σ = 1733537575848. Its totient is φ = 800041736880.

The previous prime is 1200102001979. The next prime is 1200102002039. The reversal of 1200102001983 is 3891002010021.

It is not a de Polignac number, because 1200102001983 - 2² = 1200102001979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200102001913) 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, 1897273 + ... + 2449458.

It is an arithmetic number, because the mean of its divisors is an integer number (144461464654).

Almost surely, 2^{1200102001983} is an apocalyptic number.

1200102001983 is a deficient number, since it is larger than the sum of its proper divisors (533435573865).

1200102001983 is a wasteful number, since it uses less digits than its factorization.

1200102001983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377414 (or 4377411 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 1200102001983 in words is "one trillion, two hundred billion, one hundred two million, one thousand, nine hundred eighty-three".