3121323311 has 2 divisors, whose sum is σ = 3121323312. Its totient is φ = 3121323310.

The previous prime is 3121323299. The next prime is 3121323341. The reversal of 3121323311 is 1133231213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121323311 - 2¹⁴ = 3121306927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121323341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560661655 + 1560661656.

It is an arithmetic number, because the mean of its divisors is an integer number (1560661656).

Almost surely, 2^3121323311 is an apocalyptic number.

3121323311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121323311 is an equidigital number, since it uses as much as digits as its factorization.

3121323311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 3121323311 is about 55868.8044529324. The cubic root of 3121323311 is about 1461.4352732225.

Adding to 3121323311 its reverse (1133231213), we get a palindrome (4254554524).

The spelling of 3121323311 in words is "three billion, one hundred twenty-one million, three hundred twenty-three thousand, three hundred eleven".