1020372820003 has 4 divisors (see below), whose sum is σ = 1021066480768. Its totient is φ = 1019679159240.

The previous prime is 1020372819997. The next prime is 1020372820037. The reversal of 1020372820003 is 3000282730201.

1020372820003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1020372820003 - 2²¹ = 1020370722851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020372821003) 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, 346828176 + ... + 346831117.

It is an arithmetic number, because the mean of its divisors is an integer number (255266620192).

Almost surely, 2^{1020372820003} is an apocalyptic number.

1020372820003 is a deficient number, since it is larger than the sum of its proper divisors (693660765).

1020372820003 is an equidigital number, since it uses as much as digits as its factorization.

1020372820003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693660764.

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 1020372820003 in words is "one trillion, twenty billion, three hundred seventy-two million, eight hundred twenty thousand, three".