31132012271 has 2 divisors, whose sum is σ = 31132012272. Its totient is φ = 31132012270.

The previous prime is 31132012231. The next prime is 31132012309. The reversal of 31132012271 is 17221023113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31132012271 - 2²⁶ = 31064903407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566006135 + 15566006136.

It is an arithmetic number, because the mean of its divisors is an integer number (15566006136).

Almost surely, 2^31132012271 is an apocalyptic number.

31132012271 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132012271 is an equidigital number, since it uses as much as digits as its factorization.

31132012271 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 23.

Adding to 31132012271 its reverse (17221023113), we get a palindrome (48353035384).

The spelling of 31132012271 in words is "thirty-one billion, one hundred thirty-two million, twelve thousand, two hundred seventy-one".