31430133037 has 2 divisors, whose sum is σ = 31430133038. Its totient is φ = 31430133036.

The previous prime is 31430133023. The next prime is 31430133041. The reversal of 31430133037 is 73033103413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20703180996 + 10726952041 = 143886^2 + 103571^2 .

It is an emirp because it is prime and its reverse (73033103413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31430133037 - 2²⁷ = 31295915309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31430132996 and 31430133014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31430133047) 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, 15715066518 + 15715066519.

It is an arithmetic number, because the mean of its divisors is an integer number (15715066519).

Almost surely, 2^31430133037 is an apocalyptic number.

It is an amenable number.

31430133037 is a deficient number, since it is larger than the sum of its proper divisors (1).

31430133037 is an equidigital number, since it uses as much as digits as its factorization.

31430133037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 28.

The spelling of 31430133037 in words is "thirty-one billion, four hundred thirty million, one hundred thirty-three thousand, thirty-seven".