31142331379 has 2 divisors, whose sum is σ = 31142331380. Its totient is φ = 31142331378.

The previous prime is 31142331373. The next prime is 31142331449. The reversal of 31142331379 is 97313324113.

It is a weak prime.

It is an emirp because it is prime and its reverse (97313324113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31142331379 - 2³ = 31142331371 is a prime.

It is not a weakly prime, because it can be changed into another prime (31142331371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15571165689 + 15571165690.

It is an arithmetic number, because the mean of its divisors is an integer number (15571165690).

Almost surely, 2^31142331379 is an apocalyptic number.

31142331379 is a deficient number, since it is larger than the sum of its proper divisors (1).

31142331379 is an equidigital number, since it uses as much as digits as its factorization.

31142331379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 37.

The spelling of 31142331379 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty-one thousand, three hundred seventy-nine".