20031103233 has 6 divisors (see below), whose sum is σ = 28933815794. Its totient is φ = 13354068816.

The previous prime is 20031103207. The next prime is 20031103241. The reversal of 20031103233 is 33230113002.

It can be written as a sum of positive squares in only one way, i.e., 13672157184 + 6358946049 = 116928^2 + 79743^2 .

It is not a de Polignac number, because 20031103233 - 2¹⁴ = 20031086849 is a prime.

It is a super-2 number, since 2×20031103233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031103283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1112839060 + ... + 1112839077.

Almost surely, 2^20031103233 is an apocalyptic number.

It is an amenable number.

20031103233 is a deficient number, since it is larger than the sum of its proper divisors (8902712561).

20031103233 is a wasteful number, since it uses less digits than its factorization.

20031103233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225678143 (or 2225678140 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20031103233 its reverse (33230113002), we get a palindrome (53261216235).

The spelling of 20031103233 in words is "twenty billion, thirty-one million, one hundred three thousand, two hundred thirty-three".