20203004131 has 2 divisors, whose sum is σ = 20203004132. Its totient is φ = 20203004130.

The previous prime is 20203004123. The next prime is 20203004149. The reversal of 20203004131 is 13140030202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203004131 - 2³ = 20203004123 is a prime.

It is a super-2 number, since 2×20203004131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20203007131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101502065 + 10101502066.

It is an arithmetic number, because the mean of its divisors is an integer number (10101502066).

Almost surely, 2^20203004131 is an apocalyptic number.

20203004131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203004131 is an equidigital number, since it uses as much as digits as its factorization.

20203004131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20203004131 its reverse (13140030202), we get a palindrome (33343034333).

The spelling of 20203004131 in words is "twenty billion, two hundred three million, four thousand, one hundred thirty-one".