3123805413 has 8 divisors (see below), whose sum is σ = 4193028000. Its totient is φ = 2068559888.

The previous prime is 3123805397. The next prime is 3123805463. The reversal of 3123805413 is 3145083213.

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 3123805413 - 2⁴ = 3123805397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123805463) 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, 3493743 + ... + 3494636.

It is an arithmetic number, because the mean of its divisors is an integer number (524128500).

Almost surely, 2^3123805413 is an apocalyptic number.

It is an amenable number.

3123805413 is a deficient number, since it is larger than the sum of its proper divisors (1069222587).

3123805413 is a wasteful number, since it uses less digits than its factorization.

3123805413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988531.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 3123805413 is about 55891.0137052460. The cubic root of 3123805413 is about 1461.8225523726.

Adding to 3123805413 its reverse (3145083213), we get a palindrome (6268888626).

The spelling of 3123805413 in words is "three billion, one hundred twenty-three million, eight hundred five thousand, four hundred thirteen".