31322112037 has 2 divisors, whose sum is σ = 31322112038. Its totient is φ = 31322112036.

The previous prime is 31322112023. The next prime is 31322112061. The reversal of 31322112037 is 73021122313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30023879076 + 1298232961 = 173274^2 + 36031^2 .

It is an emirp because it is prime and its reverse (73021122313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31322112037 - 2¹¹ = 31322109989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322112337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661056018 + 15661056019.

It is an arithmetic number, because the mean of its divisors is an integer number (15661056019).

Almost surely, 2^31322112037 is an apocalyptic number.

It is an amenable number.

31322112037 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322112037 is an equidigital number, since it uses as much as digits as its factorization.

31322112037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 31322112037 in words is "thirty-one billion, three hundred twenty-two million, one hundred twelve thousand, thirty-seven".