3123810943 has 4 divisors (see below), whose sum is σ = 3407793768. Its totient is φ = 2839828120.

The previous prime is 3123810931. The next prime is 3123810947. The reversal of 3123810943 is 3490183213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123810943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3123810899 and 3123810908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123810947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141991396 + ... + 141991417.

It is an arithmetic number, because the mean of its divisors is an integer number (851948442).

Almost surely, 2^3123810943 is an apocalyptic number.

3123810943 is a deficient number, since it is larger than the sum of its proper divisors (283982825).

3123810943 is a wasteful number, since it uses less digits than its factorization.

3123810943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283982824.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 3123810943 is about 55891.0631765043. The cubic root of 3123810943 is about 1461.8234149823.

The spelling of 3123810943 in words is "three billion, one hundred twenty-three million, eight hundred ten thousand, nine hundred forty-three".