3121031214311 has 2 divisors, whose sum is σ = 3121031214312. Its totient is φ = 3121031214310.

The previous prime is 3121031214299. The next prime is 3121031214341. The reversal of 3121031214311 is 1134121301213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121031214311 - 2¹⁴ = 3121031197927 is a prime.

It is a super-2 number, since 2×3121031214311² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121031214341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560515607155 + 1560515607156.

It is an arithmetic number, because the mean of its divisors is an integer number (1560515607156).

Almost surely, 2^{3121031214311} is an apocalyptic number.

3121031214311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121031214311 is an equidigital number, since it uses as much as digits as its factorization.

3121031214311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 3121031214311 its reverse (1134121301213), we get a palindrome (4255152515524).

The spelling of 3121031214311 in words is "three trillion, one hundred twenty-one billion, thirty-one million, two hundred fourteen thousand, three hundred eleven".