31002342210197 has 2 divisors, whose sum is σ = 31002342210198. Its totient is φ = 31002342210196.

The previous prime is 31002342210187. The next prime is 31002342210223. The reversal of 31002342210197 is 79101224320013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29820238345681 + 1182103864516 = 5460791^2 + 1087246^2 .

It is a cyclic number.

It is not a de Polignac number, because 31002342210197 - 2¹⁰ = 31002342209173 is a prime.

It is a super-2 number, since 2×31002342210197² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31002342210187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15501171105098 + 15501171105099.

It is an arithmetic number, because the mean of its divisors is an integer number (15501171105099).

Almost surely, 2^{31002342210197} is an apocalyptic number.

It is an amenable number.

31002342210197 is a deficient number, since it is larger than the sum of its proper divisors (1).

31002342210197 is an equidigital number, since it uses as much as digits as its factorization.

31002342210197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 31002342210197 in words is "thirty-one trillion, two billion, three hundred forty-two million, two hundred ten thousand, one hundred ninety-seven".