1012001001983 has 4 divisors (see below), whose sum is σ = 1012004528040. Its totient is φ = 1011997475928.

The previous prime is 1012001001971. The next prime is 1012001002007. The reversal of 1012001001983 is 3891001002101.

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 1012001001983 - 2⁶ = 1012001001919 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 (1012001031983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290260 + ... + 1920617.

It is an arithmetic number, because the mean of its divisors is an integer number (253001132010).

Almost surely, 2^{1012001001983} is an apocalyptic number.

1012001001983 is a deficient number, since it is larger than the sum of its proper divisors (3526057).

1012001001983 is an equidigital number, since it uses as much as digits as its factorization.

1012001001983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3526056.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1012001001983 in words is "one trillion, twelve billion, one million, one thousand, nine hundred eighty-three".