1000312311223 has 4 divisors (see below), whose sum is σ = 1009661024520. Its totient is φ = 990963597928.

The previous prime is 1000312311211. The next prime is 1000312311247. The reversal of 1000312311223 is 3221132130001.

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 1000312311223 - 2²⁵ = 1000278756791 is a prime.

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 1000312311223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000312311253) 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, 4674356488 + ... + 4674356701.

It is an arithmetic number, because the mean of its divisors is an integer number (252415256130).

Almost surely, 2^{1000312311223} is an apocalyptic number.

1000312311223 is a deficient number, since it is larger than the sum of its proper divisors (9348713297).

1000312311223 is an equidigital number, since it uses as much as digits as its factorization.

1000312311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348713296.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1000312311223 its reverse (3221132130001), we get a palindrome (4221444441224).

The spelling of 1000312311223 in words is "one trillion, three hundred twelve million, three hundred eleven thousand, two hundred twenty-three".