31010342213 has 2 divisors, whose sum is σ = 31010342214. Its totient is φ = 31010342212.

The previous prime is 31010342201. The next prime is 31010342261. The reversal of 31010342213 is 31224301013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31003462084 + 6880129 = 176078^2 + 2623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31010342213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31010342113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505171106 + 15505171107.

It is an arithmetic number, because the mean of its divisors is an integer number (15505171107).

Almost surely, 2^31010342213 is an apocalyptic number.

It is an amenable number.

31010342213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31010342213 is an equidigital number, since it uses as much as digits as its factorization.

31010342213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31010342213 its reverse (31224301013), we get a palindrome (62234643226).

The spelling of 31010342213 in words is "thirty-one billion, ten million, three hundred forty-two thousand, two hundred thirteen".