131404235503 has 2 divisors, whose sum is σ = 131404235504. Its totient is φ = 131404235502.

The previous prime is 131404235497. The next prime is 131404235507. The reversal of 131404235503 is 305532404131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131404235503 - 2³³ = 122814300911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131404235507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65702117751 + 65702117752.

It is an arithmetic number, because the mean of its divisors is an integer number (65702117752).

Almost surely, 2^131404235503 is an apocalyptic number.

131404235503 is a deficient number, since it is larger than the sum of its proper divisors (1).

131404235503 is an equidigital number, since it uses as much as digits as its factorization.

131404235503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 131404235503 its reverse (305532404131), we get a palindrome (436936639634).

The spelling of 131404235503 in words is "one hundred thirty-one billion, four hundred four million, two hundred thirty-five thousand, five hundred three".