3031123213 has 8 divisors (see below), whose sum is σ = 3114455832. Its totient is φ = 2947864896.

The previous prime is 3031123211. The next prime is 3031123217. The reversal of 3031123213 is 3123211303.

It can be written as a sum of positive squares in 4 ways, for example, as 285677604 + 2745445609 = 16902^2 + 52397^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3031123213 - 2¹ = 3031123211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031123211) 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, 69831 + ... + 104587.

It is an arithmetic number, because the mean of its divisors is an integer number (389306979).

Almost surely, 2^3031123213 is an apocalyptic number.

It is an amenable number.

3031123213 is a deficient number, since it is larger than the sum of its proper divisors (83332619).

3031123213 is a wasteful number, since it uses less digits than its factorization.

3031123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37151.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3031123213 is about 55055.6374316019. The cubic root of 3031123213 is about 1447.2199150045.

Adding to 3031123213 its reverse (3123211303), we get a palindrome (6154334516).

The spelling of 3031123213 in words is "three billion, thirty-one million, one hundred twenty-three thousand, two hundred thirteen".