31120003321193 has 2 divisors, whose sum is σ = 31120003321194. Its totient is φ = 31120003321192.

The previous prime is 31120003321129. The next prime is 31120003321321. The reversal of 31120003321193 is 39112330002113.

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., 25135262466064 + 5984740855129 = 5013508^2 + 2446373^2 .

It is a cyclic number.

It is not a de Polignac number, because 31120003321193 - 2⁶ = 31120003321129 is a prime.

It is a super-2 number, since 2×31120003321193² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31120003321493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560001660596 + 15560001660597.

It is an arithmetic number, because the mean of its divisors is an integer number (15560001660597).

Almost surely, 2^{31120003321193} is an apocalyptic number.

It is an amenable number.

31120003321193 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120003321193 is an equidigital number, since it uses as much as digits as its factorization.

31120003321193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 31120003321193 in words is "thirty-one trillion, one hundred twenty billion, three million, three hundred twenty-one thousand, one hundred ninety-three".