3123740443 has 4 divisors (see below), whose sum is σ = 3126599488. Its totient is φ = 3120881400.

The previous prime is 3123740413. The next prime is 3123740479. The reversal of 3123740443 is 3440473213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3440473213 = 223 ⋅15428131.

It is a cyclic number.

It is not a de Polignac number, because 3123740443 - 2¹³ = 3123732251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123740413) 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, 1427883 + ... + 1430068.

It is an arithmetic number, because the mean of its divisors is an integer number (781649872).

Almost surely, 2^3123740443 is an apocalyptic number.

3123740443 is a deficient number, since it is larger than the sum of its proper divisors (2859045).

3123740443 is a wasteful number, since it uses less digits than its factorization.

3123740443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859044.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 3123740443 is about 55890.4324817763. The cubic root of 3123740443 is about 1461.8124178031.

The spelling of 3123740443 in words is "three billion, one hundred twenty-three million, seven hundred forty thousand, four hundred forty-three".