3123261843427 has 4 divisors (see below), whose sum is σ = 3407194738296. Its totient is φ = 2839328948560.

The previous prime is 3123261843407. The next prime is 3123261843433. The reversal of 3123261843427 is 7243481623213.

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-3123261843427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123261843407) 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, 141966447418 + ... + 141966447439.

It is an arithmetic number, because the mean of its divisors is an integer number (851798684574).

Almost surely, 2^{3123261843427} is an apocalyptic number.

3123261843427 is a deficient number, since it is larger than the sum of its proper divisors (283932894869).

3123261843427 is a wasteful number, since it uses less digits than its factorization.

3123261843427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283932894868.

The product of its digits is 1161216, while the sum is 46.

The spelling of 3123261843427 in words is "three trillion, one hundred twenty-three billion, two hundred sixty-one million, eight hundred forty-three thousand, four hundred twenty-seven".