1023773221799 has 8 divisors (see below), whose sum is σ = 1043263035360. Its totient is φ = 1004289828256.

The previous prime is 1023773221777. The next prime is 1023773221819. The reversal of 1023773221799 is 9971223773201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023773221799 - 2²⁰ = 1023772173223 is a prime.

It is a super-2 number, since 2×1023773221799² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023773221799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023773221399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282427 + ... + 1921500.

It is an arithmetic number, because the mean of its divisors is an integer number (130407879420).

Almost surely, 2^{1023773221799} is an apocalyptic number.

1023773221799 is a deficient number, since it is larger than the sum of its proper divisors (19489813561).

1023773221799 is an equidigital number, since it uses as much as digits as its factorization.

1023773221799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210009.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 1023773221799 in words is "one trillion, twenty-three billion, seven hundred seventy-three million, two hundred twenty-one thousand, seven hundred ninety-nine".