131222304231503 has 2 divisors, whose sum is σ = 131222304231504. Its totient is φ = 131222304231502.

The previous prime is 131222304231433. The next prime is 131222304231547. The reversal of 131222304231503 is 305132403222131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131222304231503 - 2¹² = 131222304227407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131222304231503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131222304234503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611152115751 + 65611152115752.

It is an arithmetic number, because the mean of its divisors is an integer number (65611152115752).

Almost surely, 2^{131222304231503} is an apocalyptic number.

131222304231503 is a deficient number, since it is larger than the sum of its proper divisors (1).

131222304231503 is an equidigital number, since it uses as much as digits as its factorization.

131222304231503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 131222304231503 its reverse (305132403222131), we get a palindrome (436354707453634).

The spelling of 131222304231503 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred four million, two hundred thirty-one thousand, five hundred three".