3123211243 has 2 divisors, whose sum is σ = 3123211244. Its totient is φ = 3123211242.

The previous prime is 3123211237. The next prime is 3123211249. The reversal of 3123211243 is 3421123213.

It is a balanced prime because it is at equal distance from previous prime (3123211237) and next prime (3123211249).

It is an emirp because it is prime and its reverse (3421123213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3123211243 - 2⁹ = 3123210731 is a prime.

It is not a weakly prime, because it can be changed into another prime (3123211249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561605621 + 1561605622.

It is an arithmetic number, because the mean of its divisors is an integer number (1561605622).

Almost surely, 2^3123211243 is an apocalyptic number.

3123211243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123211243 is an equidigital number, since it uses as much as digits as its factorization.

3123211243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 3123211243 is about 55885.6980183660. The cubic root of 3123211243 is about 1461.7298634813.

Adding to 3123211243 its reverse (3421123213), we get a palindrome (6544334456).

The spelling of 3123211243 in words is "three billion, one hundred twenty-three million, two hundred eleven thousand, two hundred forty-three".