20031023103 has 32 divisors (see below), whose sum is σ = 33055142400. Its totient is φ = 10506761856.

The previous prime is 20031023069. The next prime is 20031023119. The reversal of 20031023103 is 30132013002.

It is not a de Polignac number, because 20031023103 - 2¹² = 20031019007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031023503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156088 + ... + 253821.

It is an arithmetic number, because the mean of its divisors is an integer number (1032973200).

Almost surely, 2^20031023103 is an apocalyptic number.

20031023103 is a deficient number, since it is larger than the sum of its proper divisors (13024119297).

20031023103 is a wasteful number, since it uses less digits than its factorization.

20031023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410111.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20031023103 its reverse (30132013002), we get a palindrome (50163036105).

The spelling of 20031023103 in words is "twenty billion, thirty-one million, twenty-three thousand, one hundred three".