20002131103 has 2 divisors, whose sum is σ = 20002131104. Its totient is φ = 20002131102.

The previous prime is 20002131101. The next prime is 20002131119. The reversal of 20002131103 is 30113120002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20002131103 - 2¹ = 20002131101 is a prime.

Together with 20002131101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002131101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001065551 + 10001065552.

It is an arithmetic number, because the mean of its divisors is an integer number (10001065552).

Almost surely, 2^20002131103 is an apocalyptic number.

20002131103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002131103 is an equidigital number, since it uses as much as digits as its factorization.

20002131103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20002131103 its reverse (30113120002), we get a palindrome (50115251105).

The spelling of 20002131103 in words is "twenty billion, two million, one hundred thirty-one thousand, one hundred three".