20104010231 has 4 divisors (see below), whose sum is σ = 20104676832. Its totient is φ = 20103343632.

The previous prime is 20104010209. The next prime is 20104010239. The reversal of 20104010231 is 13201040102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13201040102 = 2 ⋅6600520051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20104010231 is a prime.

It is a super-2 number, since 2×20104010231² (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 (20104010239) 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, 285806 + ... + 349131.

It is an arithmetic number, because the mean of its divisors is an integer number (5026169208).

Almost surely, 2^20104010231 is an apocalyptic number.

20104010231 is a deficient number, since it is larger than the sum of its proper divisors (666601).

20104010231 is an equidigital number, since it uses as much as digits as its factorization.

20104010231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666600.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20104010231 its reverse (13201040102), we get a palindrome (33305050333).

The spelling of 20104010231 in words is "twenty billion, one hundred four million, ten thousand, two hundred thirty-one".