31420222079 has 2 divisors, whose sum is σ = 31420222080. Its totient is φ = 31420222078.

The previous prime is 31420222051. The next prime is 31420222133. The reversal of 31420222079 is 97022202413.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31420222079 is a prime.

It is a super-3 number, since 3×31420222079³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31420222049) 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, 15710111039 + 15710111040.

It is an arithmetic number, because the mean of its divisors is an integer number (15710111040).

Almost surely, 2^31420222079 is an apocalyptic number.

31420222079 is a deficient number, since it is larger than the sum of its proper divisors (1).

31420222079 is an equidigital number, since it uses as much as digits as its factorization.

31420222079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 31420222079 in words is "thirty-one billion, four hundred twenty million, two hundred twenty-two thousand, seventy-nine".