31140201271 has 2 divisors, whose sum is σ = 31140201272. Its totient is φ = 31140201270.

The previous prime is 31140201187. The next prime is 31140201341. The reversal of 31140201271 is 17210204113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31140201271 - 2⁷ = 31140201143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31140201971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15570100635 + 15570100636.

It is an arithmetic number, because the mean of its divisors is an integer number (15570100636).

Almost surely, 2^31140201271 is an apocalyptic number.

31140201271 is a deficient number, since it is larger than the sum of its proper divisors (1).

31140201271 is an equidigital number, since it uses as much as digits as its factorization.

31140201271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 31140201271 its reverse (17210204113), we get a palindrome (48350405384).

The spelling of 31140201271 in words is "thirty-one billion, one hundred forty million, two hundred one thousand, two hundred seventy-one".