1403421013 has 4 divisors (see below), whose sum is σ = 1413665100. Its totient is φ = 1393176928.

The previous prime is 1403421011. The next prime is 1403421031. The reversal of 1403421013 is 3101243041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 720278244 + 683142769 = 26838^2 + 26137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403421013 - 2¹ = 1403421011 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 (1403421011) 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, 5121838 + ... + 5122111.

It is an arithmetic number, because the mean of its divisors is an integer number (353416275).

Almost surely, 2^1403421013 is an apocalyptic number.

It is an amenable number.

1403421013 is a deficient number, since it is larger than the sum of its proper divisors (10244087).

1403421013 is a wasteful number, since it uses less digits than its factorization.

1403421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10244086.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1403421013 is about 37462.2611837566. The cubic root of 1403421013 is about 1119.5994031300.

Adding to 1403421013 its reverse (3101243041), we get a palindrome (4504664054).

The spelling of 1403421013 in words is "one billion, four hundred three million, four hundred twenty-one thousand, thirteen".