331211010213 has 6 divisors (see below), whose sum is σ = 478415903654. Its totient is φ = 220807340136.

The previous prime is 331211010173. The next prime is 331211010253. The reversal of 331211010213 is 312010112133.

331211010213 is a `hidden beast` number, since 331 + 2 + 110 + 10 + 213 = 666.

It is an interprime number because it is at equal distance from previous prime (331211010173) and next prime (331211010253).

It can be written as a sum of positive squares in only one way, i.e., 169054190244 + 162156819969 = 411162^2 + 402687^2 .

It is not a de Polignac number, because 331211010213 - 2¹² = 331211006117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331211010253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18400611670 + ... + 18400611687.

Almost surely, 2^331211010213 is an apocalyptic number.

It is an amenable number.

331211010213 is a deficient number, since it is larger than the sum of its proper divisors (147204893441).

331211010213 is a wasteful number, since it uses less digits than its factorization.

331211010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36801223363 (or 36801223360 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 331211010213 its reverse (312010112133), we get a palindrome (643221122346).

The spelling of 331211010213 in words is "three hundred thirty-one billion, two hundred eleven million, ten thousand, two hundred thirteen".