31430133227 has 2 divisors, whose sum is σ = 31430133228. Its totient is φ = 31430133226.

The previous prime is 31430133199. The next prime is 31430133253. The reversal of 31430133227 is 72233103413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31430133227 - 2⁸ = 31430132971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31430133227.

It is not a weakly prime, because it can be changed into another prime (31430130227) 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, 15715066613 + 15715066614.

It is an arithmetic number, because the mean of its divisors is an integer number (15715066614).

Almost surely, 2^31430133227 is an apocalyptic number.

31430133227 is a deficient number, since it is larger than the sum of its proper divisors (1).

31430133227 is an equidigital number, since it uses as much as digits as its factorization.

31430133227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The spelling of 31430133227 in words is "thirty-one billion, four hundred thirty million, one hundred thirty-three thousand, two hundred twenty-seven".