20102131003 has 2 divisors, whose sum is σ = 20102131004. Its totient is φ = 20102131002.

The previous prime is 20102131001. The next prime is 20102131111. The reversal of 20102131003 is 30013120102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20102131003 - 2¹ = 20102131001 is a prime.

Together with 20102131001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20102131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051065501 + 10051065502.

It is an arithmetic number, because the mean of its divisors is an integer number (10051065502).

Almost surely, 2^20102131003 is an apocalyptic number.

20102131003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102131003 is an equidigital number, since it uses as much as digits as its factorization.

20102131003 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20102131003 its reverse (30013120102), we get a palindrome (50115251105).

The spelling of 20102131003 in words is "twenty billion, one hundred two million, one hundred thirty-one thousand, three".