4321013 has 4 divisors (see below), whose sum is σ = 4345068. Its totient is φ = 4296960.

The previous prime is 4321003. The next prime is 4321019. The reversal of 4321013 is 3101234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3101234 = 2 ⋅1550617.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 4092529 = 478^2 + 2023^2 .

It is a cyclic number.

It is not a de Polignac number, because 4321013 - 2¹⁶ = 4255477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321019) 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, 11756 + ... + 12117.

It is an arithmetic number, because the mean of its divisors is an integer number (1086267).

Almost surely, 2^4321013 is an apocalyptic number.

It is an amenable number.

4321013 is a deficient number, since it is larger than the sum of its proper divisors (24055).

4321013 is a wasteful number, since it uses less digits than its factorization.

4321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24054.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 4321013 is about 2078.7046447247. The cubic root of 4321013 is about 162.8777861167.

Adding to 4321013 its reverse (3101234), we get a palindrome (7422247).

The spelling of 4321013 in words is "four million, three hundred twenty-one thousand, thirteen".