1602802821023 has 4 divisors (see below), whose sum is σ = 1603078175208. Its totient is φ = 1602527466840.

The previous prime is 1602802821001. The next prime is 1602802821083. The reversal of 1602802821023 is 3201282082061.

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 1602802821023 - 2⁶ = 1602802820959 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 (1602802821083) 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, 137668361 + ... + 137680002.

It is an arithmetic number, because the mean of its divisors is an integer number (400769543802).

Almost surely, 2^{1602802821023} is an apocalyptic number.

1602802821023 is a deficient number, since it is larger than the sum of its proper divisors (275354185).

1602802821023 is an equidigital number, since it uses as much as digits as its factorization.

1602802821023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275354184.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 1602802821023 in words is "one trillion, six hundred two billion, eight hundred two million, eight hundred twenty-one thousand, twenty-three".