3111213 has 8 divisors (see below), whose sum is σ = 4740928. Its totient is φ = 1777824.

The previous prime is 3111197. The next prime is 3111217. The reversal of 3111213 is 3121113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3111213 - 2⁴ = 3111197 is a prime.

It is a Duffinian number.

3111213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74056 + ... + 74097.

It is an arithmetic number, because the mean of its divisors is an integer number (592616).

Almost surely, 2^3111213 is an apocalyptic number.

It is an amenable number.

3111213 is a deficient number, since it is larger than the sum of its proper divisors (1629715).

3111213 is a wasteful number, since it uses less digits than its factorization.

3111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148163.

The product of its digits is 18, while the sum is 12.

The square root of 3111213 is about 1763.8630899251. The cubic root of 3111213 is about 145.9855649706.

Adding to 3111213 its reverse (3121113), we get a palindrome (6232326).

It can be divided in two parts, 31112 and 13, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 3111213 in words is "three million, one hundred eleven thousand, two hundred thirteen".