3113125421 has 8 divisors (see below), whose sum is σ = 3568113600. Its totient is φ = 2660701248.

The previous prime is 3113125409. The next prime is 3113125447. The reversal of 3113125421 is 1245213113.

3113125421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3113125421 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 (3113125451) 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, 638396 + ... + 643253.

It is an arithmetic number, because the mean of its divisors is an integer number (446014200).

Almost surely, 2^3113125421 is an apocalyptic number.

It is an amenable number.

3113125421 is a deficient number, since it is larger than the sum of its proper divisors (454988179).

3113125421 is a wasteful number, since it uses less digits than its factorization.

3113125421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282003.

The product of its digits is 720, while the sum is 23.

The square root of 3113125421 is about 55795.3888865379. The cubic root of 3113125421 is about 1460.1547063497.

Adding to 3113125421 its reverse (1245213113), we get a palindrome (4358338534).

The spelling of 3113125421 in words is "three billion, one hundred thirteen million, one hundred twenty-five thousand, four hundred twenty-one".