20103110231 has 4 divisors (see below), whose sum is σ = 20103589464. Its totient is φ = 20102631000.

The previous prime is 20103110221. The next prime is 20103110263. The reversal of 20103110231 is 13201130102.

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

It is a cyclic number.

It is not a de Polignac number, because 20103110231 - 2¹⁰ = 20103109207 is a prime.

It is a super-2 number, since 2×20103110231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103110221) 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, 169940 + ... + 262841.

It is an arithmetic number, because the mean of its divisors is an integer number (5025897366).

Almost surely, 2^20103110231 is an apocalyptic number.

20103110231 is a deficient number, since it is larger than the sum of its proper divisors (479233).

20103110231 is an equidigital number, since it uses as much as digits as its factorization.

20103110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479232.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20103110231 its reverse (13201130102), we get a palindrome (33304240333).

The spelling of 20103110231 in words is "twenty billion, one hundred three million, one hundred ten thousand, two hundred thirty-one".