3120211213331 has 2 divisors, whose sum is σ = 3120211213332. Its totient is φ = 3120211213330.

The previous prime is 3120211213319. The next prime is 3120211213349. The reversal of 3120211213331 is 1333121120213.

It is a weak prime.

It is an emirp because it is prime and its reverse (1333121120213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120211213331 is a prime.

It is a super-2 number, since 2×3120211213331² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3120211213297 and 3120211213306.

It is not a weakly prime, because it can be changed into another prime (3120211213381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560105606665 + 1560105606666.

It is an arithmetic number, because the mean of its divisors is an integer number (1560105606666).

Almost surely, 2^{3120211213331} is an apocalyptic number.

3120211213331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120211213331 is an equidigital number, since it uses as much as digits as its factorization.

3120211213331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3120211213331 its reverse (1333121120213), we get a palindrome (4453332333544).

The spelling of 3120211213331 in words is "three trillion, one hundred twenty billion, two hundred eleven million, two hundred thirteen thousand, three hundred thirty-one".