20312322003 has 12 divisors (see below), whose sum is σ = 29347558240. Its totient is φ = 13538069136.

The previous prime is 20312321989. The next prime is 20312322029. The reversal of 20312322003 is 30022321302.

It is a happy number.

It is not a de Polignac number, because 20312322003 - 2⁵ = 20312321971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312322803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252676 + ... + 323217.

Almost surely, 2^20312322003 is an apocalyptic number.

20312322003 is a deficient number, since it is larger than the sum of its proper divisors (9035236237).

20312322003 is a wasteful number, since it uses less digits than its factorization.

20312322003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579818 (or 579815 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20312322003 its reverse (30022321302), we get a palindrome (50334643305).

The spelling of 20312322003 in words is "twenty billion, three hundred twelve million, three hundred twenty-two thousand, three".