1002323221231 has 4 divisors (see below), whose sum is σ = 1055077075000. Its totient is φ = 949569367464.

The previous prime is 1002323221219. The next prime is 1002323221297. The reversal of 1002323221231 is 1321223232001.

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 1002323221231 - 2¹⁷ = 1002323090159 is a prime.

It is a super-2 number, since 2×1002323221231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002323221831) 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, 26376926856 + ... + 26376926893.

It is an arithmetic number, because the mean of its divisors is an integer number (263769268750).

Almost surely, 2^{1002323221231} is an apocalyptic number.

1002323221231 is a deficient number, since it is larger than the sum of its proper divisors (52753853769).

1002323221231 is an equidigital number, since it uses as much as digits as its factorization.

1002323221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52753853768.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1002323221231 its reverse (1321223232001), we get a palindrome (2323546453232).

The spelling of 1002323221231 in words is "one trillion, two billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred thirty-one".