131330221403 has 2 divisors, whose sum is σ = 131330221404. Its totient is φ = 131330221402.

The previous prime is 131330221381. The next prime is 131330221433. The reversal of 131330221403 is 304122033131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131330221403 - 2¹⁸ = 131329959259 is a prime.

It is not a weakly prime, because it can be changed into another prime (131330221433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665110701 + 65665110702.

It is an arithmetic number, because the mean of its divisors is an integer number (65665110702).

Almost surely, 2^131330221403 is an apocalyptic number.

131330221403 is a deficient number, since it is larger than the sum of its proper divisors (1).

131330221403 is an equidigital number, since it uses as much as digits as its factorization.

131330221403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131330221403 its reverse (304122033131), we get a palindrome (435452254534).

The spelling of 131330221403 in words is "one hundred thirty-one billion, three hundred thirty million, two hundred twenty-one thousand, four hundred three".