1020372820002 has 16 divisors (see below), whose sum is σ = 2267495155680. Its totient is φ = 340124273316.

The previous prime is 1020372819997. The next prime is 1020372820037. The reversal of 1020372820002 is 2000282730201.

It is a happy number.

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9447896428 + ... + 9447896535.

It is an arithmetic number, because the mean of its divisors is an integer number (141718447230).

Almost surely, 2^{1020372820002} is an apocalyptic number.

1020372820002 is an abundant number, since it is smaller than the sum of its proper divisors (1247122335678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020372820002 is a wasteful number, since it uses less digits than its factorization.

1020372820002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18895792974 (or 18895792968 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 1020372820002 in words is "one trillion, twenty billion, three hundred seventy-two million, eight hundred twenty thousand, two".