20103301231 has 4 divisors (see below), whose sum is σ = 21649709032. Its totient is φ = 18556893432.

The previous prime is 20103301189. The next prime is 20103301243. The reversal of 20103301231 is 13210330102.

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 20103301231 - 2¹⁵ = 20103268463 is a prime.

It is a super-2 number, since 2×20103301231² (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 (20103302231) 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, 773203881 + ... + 773203906.

It is an arithmetic number, because the mean of its divisors is an integer number (5412427258).

Almost surely, 2^20103301231 is an apocalyptic number.

20103301231 is a deficient number, since it is larger than the sum of its proper divisors (1546407801).

20103301231 is a wasteful number, since it uses less digits than its factorization.

20103301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546407800.

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

Adding to 20103301231 its reverse (13210330102), we get a palindrome (33313631333).

The spelling of 20103301231 in words is "twenty billion, one hundred three million, three hundred one thousand, two hundred thirty-one".