1020323100019 has 4 divisors (see below), whose sum is σ = 1025960244400. Its totient is φ = 1014685955640.

The previous prime is 1020323099989. The next prime is 1020323100061. The reversal of 1020323100019 is 9100013230201.

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 1020323100019 - 2⁷ = 1020323099891 is a prime.

It is a super-2 number, since 2×1020323100019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020323100319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2818571919 + ... + 2818572280.

It is an arithmetic number, because the mean of its divisors is an integer number (256490061100).

Almost surely, 2^{1020323100019} is an apocalyptic number.

1020323100019 is a deficient number, since it is larger than the sum of its proper divisors (5637144381).

1020323100019 is an equidigital number, since it uses as much as digits as its factorization.

1020323100019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637144380.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 1020323100019 in words is "one trillion, twenty billion, three hundred twenty-three million, one hundred thousand, nineteen".