201431371 has 2 divisors, whose sum is σ = 201431372. Its totient is φ = 201431370.

The previous prime is 201431341. The next prime is 201431381. The reversal of 201431371 is 173134102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201431371 - 2¹⁷ = 201300299 is a prime.

It is not a weakly prime, because it can be changed into another prime (201431311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100715685 + 100715686.

It is an arithmetic number, because the mean of its divisors is an integer number (100715686).

Almost surely, 2^201431371 is an apocalyptic number.

201431371 is a deficient number, since it is larger than the sum of its proper divisors (1).

201431371 is an equidigital number, since it uses as much as digits as its factorization.

201431371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 201431371 is about 14192.6520072888. The cubic root of 201431371 is about 586.1953506583.

Adding to 201431371 its reverse (173134102), we get a palindrome (374565473).

The spelling of 201431371 in words is "two hundred one million, four hundred thirty-one thousand, three hundred seventy-one".