20012131303 has 2 divisors, whose sum is σ = 20012131304. Its totient is φ = 20012131302.

The previous prime is 20012131289. The next prime is 20012131343. The reversal of 20012131303 is 30313121002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012131303 - 2²¹ = 20010034151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012131343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006065651 + 10006065652.

It is an arithmetic number, because the mean of its divisors is an integer number (10006065652).

Almost surely, 2^20012131303 is an apocalyptic number.

20012131303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012131303 is an equidigital number, since it uses as much as digits as its factorization.

20012131303 is an evil number, because the sum of its binary digits is even.

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

Adding to 20012131303 its reverse (30313121002), we get a palindrome (50325252305).

The spelling of 20012131303 in words is "twenty billion, twelve million, one hundred thirty-one thousand, three hundred three".