20003100231 has 16 divisors (see below), whose sum is σ = 28100067840. Its totient is φ = 12622043520.

The previous prime is 20003100217. The next prime is 20003100241. The reversal of 20003100231 is 13200130002.

It is a happy number.

It is not a de Polignac number, because 20003100231 - 2⁹ = 20003099719 is a prime.

It is a super-2 number, since 2×20003100231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003100241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96210 + ... + 221951.

It is an arithmetic number, because the mean of its divisors is an integer number (1756254240).

Almost surely, 2^20003100231 is an apocalyptic number.

20003100231 is a deficient number, since it is larger than the sum of its proper divisors (8096967609).

20003100231 is a wasteful number, since it uses less digits than its factorization.

20003100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319286.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20003100231 its reverse (13200130002), we get a palindrome (33203230233).

The spelling of 20003100231 in words is "twenty billion, three million, one hundred thousand, two hundred thirty-one".