20112331003 has 16 divisors (see below), whose sum is σ = 21445200000. Its totient is φ = 18807310080.

The previous prime is 20112330991. The next prime is 20112331009. The reversal of 20112331003 is 30013321102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112331003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112331009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1964568 + ... + 1974778.

It is an arithmetic number, because the mean of its divisors is an integer number (1340325000).

Almost surely, 2^20112331003 is an apocalyptic number.

20112331003 is a deficient number, since it is larger than the sum of its proper divisors (1332868997).

20112331003 is a wasteful number, since it uses less digits than its factorization.

20112331003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11562.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20112331003 its reverse (30013321102), we get a palindrome (50125652105).

Subtracting 20112331003 from its reverse (30013321102), we obtain a palindrome (9900990099).

The spelling of 20112331003 in words is "twenty billion, one hundred twelve million, three hundred thirty-one thousand, three".