3121322343 has 4 divisors (see below), whose sum is σ = 4161763128. Its totient is φ = 2080881560.

The previous prime is 3121322291. The next prime is 3121322353. The reversal of 3121322343 is 3432231213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3432231213 = 3 ⋅1144077071.

It is a cyclic number.

It is not a de Polignac number, because 3121322343 - 2⁶ = 3121322279 is a prime.

It is a super-2 number, since 2×3121322343² = 19485306337822019298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121322353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520220388 + ... + 520220393.

It is an arithmetic number, because the mean of its divisors is an integer number (1040440782).

Almost surely, 2^3121322343 is an apocalyptic number.

3121322343 is a deficient number, since it is larger than the sum of its proper divisors (1040440785).

3121322343 is a wasteful number, since it uses less digits than its factorization.

3121322343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040440784.

The product of its digits is 2592, while the sum is 24.

The square root of 3121322343 is about 55868.7957897788. The cubic root of 3121322343 is about 1461.4351221466.

Adding to 3121322343 its reverse (3432231213), we get a palindrome (6553553556).

The spelling of 3121322343 in words is "three billion, one hundred twenty-one million, three hundred twenty-two thousand, three hundred forty-three".