3121332213 has 8 divisors (see below), whose sum is σ = 4194546688. Its totient is φ = 2064502944.

The previous prime is 3121332211. The next prime is 3121332287. The reversal of 3121332213 is 3122331213.

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

It is not a de Polignac number, because 3121332213 - 2¹ = 3121332211 is a prime.

It is a super-2 number, since 2×3121332213² = 19485429567822954738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3121332213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121332211) 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, 4095856 + ... + 4096617.

It is an arithmetic number, because the mean of its divisors is an integer number (524318336).

Almost surely, 2^3121332213 is an apocalyptic number.

It is an amenable number.

3121332213 is a deficient number, since it is larger than the sum of its proper divisors (1073214475).

3121332213 is a wasteful number, since it uses less digits than its factorization.

3121332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192603.

The product of its digits is 648, while the sum is 21.

The square root of 3121332213 is about 55868.8841216647. The cubic root of 3121332213 is about 1461.4366625567.

Adding to 3121332213 its reverse (3122331213), we get a palindrome (6243663426).

The spelling of 3121332213 in words is "three billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred thirteen".