131100427 has 2 divisors, whose sum is σ = 131100428. Its totient is φ = 131100426.

The previous prime is 131100401. The next prime is 131100433. The reversal of 131100427 is 724001131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131100427 - 2¹⁹ = 130576139 is a prime.

It is not a weakly prime, because it can be changed into another prime (131100127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550213 + 65550214.

It is an arithmetic number, because the mean of its divisors is an integer number (65550214).

Almost surely, 2^131100427 is an apocalyptic number.

131100427 is a deficient number, since it is larger than the sum of its proper divisors (1).

131100427 is an equidigital number, since it uses as much as digits as its factorization.

131100427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 131100427 is about 11449.9094756247. The cubic root of 131100427 is about 508.0050568348.

Adding to 131100427 its reverse (724001131), we get a palindrome (855101558).

The spelling of 131100427 in words is "one hundred thirty-one million, one hundred thousand, four hundred twenty-seven".