131331161503 has 2 divisors, whose sum is σ = 131331161504. Its totient is φ = 131331161502.

The previous prime is 131331161473. The next prime is 131331161509. The reversal of 131331161503 is 305161133131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131331161503 - 2³³ = 122741226911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131331161509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665580751 + 65665580752.

It is an arithmetic number, because the mean of its divisors is an integer number (65665580752).

Almost surely, 2^131331161503 is an apocalyptic number.

131331161503 is a deficient number, since it is larger than the sum of its proper divisors (1).

131331161503 is an equidigital number, since it uses as much as digits as its factorization.

131331161503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

Adding to 131331161503 its reverse (305161133131), we get a palindrome (436492294634).

The spelling of 131331161503 in words is "one hundred thirty-one billion, three hundred thirty-one million, one hundred sixty-one thousand, five hundred three".