1002312223 has 4 divisors (see below), whose sum is σ = 1093431528. Its totient is φ = 911192920.

The previous prime is 1002312127. The next prime is 1002312229. The reversal of 1002312223 is 3222132001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1002312223 - 2¹³ = 1002304031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002312197 and 1002312206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002312229) 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, 45559636 + ... + 45559657.

It is an arithmetic number, because the mean of its divisors is an integer number (273357882).

Almost surely, 2^1002312223 is an apocalyptic number.

1002312223 is a deficient number, since it is larger than the sum of its proper divisors (91119305).

1002312223 is an equidigital number, since it uses as much as digits as its factorization.

1002312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91119304.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1002312223 is about 31659.3149483687. The cubic root of 1002312223 is about 1000.7701477202.

Adding to 1002312223 its reverse (3222132001), we get a palindrome (4224444224).

The spelling of 1002312223 in words is "one billion, two million, three hundred twelve thousand, two hundred twenty-three".