31010212201 has 2 divisors, whose sum is σ = 31010212202. Its totient is φ = 31010212200.

The previous prime is 31010212157. The next prime is 31010212213. The reversal of 31010212201 is 10221201013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20135893801 + 10874318400 = 141901^2 + 104280^2 .

It is a cyclic number.

It is not a de Polignac number, because 31010212201 - 2¹³ = 31010204009 is a prime.

It is not a weakly prime, because it can be changed into another prime (31010212271) 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, 15505106100 + 15505106101.

It is an arithmetic number, because the mean of its divisors is an integer number (15505106101).

Almost surely, 2^31010212201 is an apocalyptic number.

It is an amenable number.

31010212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31010212201 is an equidigital number, since it uses as much as digits as its factorization.

31010212201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 31010212201 its reverse (10221201013), we get a palindrome (41231413214).

The spelling of 31010212201 in words is "thirty-one billion, ten million, two hundred twelve thousand, two hundred one".