3123213311 has 4 divisors (see below), whose sum is σ = 3129349800. Its totient is φ = 3117076824.

The previous prime is 3123213299. The next prime is 3123213383. The reversal of 3123213311 is 1133123213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1133123213 = 311 ⋅3643483.

It is a cyclic number.

It is not a de Polignac number, because 3123213311 - 2¹⁴ = 3123196927 is a prime.

It is a super-2 number, since 2×3123213311² = 19508922772015165442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123213211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3067481 + ... + 3068498.

It is an arithmetic number, because the mean of its divisors is an integer number (782337450).

Almost surely, 2^3123213311 is an apocalyptic number.

3123213311 is a deficient number, since it is larger than the sum of its proper divisors (6136489).

3123213311 is an equidigital number, since it uses as much as digits as its factorization.

3123213311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6136488.

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

The square root of 3123213311 is about 55885.7165204133. The cubic root of 3123213311 is about 1461.7301861040.

Adding to 3123213311 its reverse (1133123213), we get a palindrome (4256336524).

The spelling of 3123213311 in words is "three billion, one hundred twenty-three million, two hundred thirteen thousand, three hundred eleven".