31114405279 has 2 divisors, whose sum is σ = 31114405280. Its totient is φ = 31114405278.

The previous prime is 31114405277. The next prime is 31114405297. The reversal of 31114405279 is 97250441113.

It is a happy number.

Together with next prime (31114405297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31114405279 - 2¹ = 31114405277 is a prime.

Together with 31114405277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31114405271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15557202639 + 15557202640.

It is an arithmetic number, because the mean of its divisors is an integer number (15557202640).

Almost surely, 2^31114405279 is an apocalyptic number.

31114405279 is a deficient number, since it is larger than the sum of its proper divisors (1).

31114405279 is an equidigital number, since it uses as much as digits as its factorization.

31114405279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 31114405279 in words is "thirty-one billion, one hundred fourteen million, four hundred five thousand, two hundred seventy-nine".