1403242013 has 4 divisors (see below), whose sum is σ = 1405836348. Its totient is φ = 1400647680.

The previous prime is 1403242007. The next prime is 1403242019. The reversal of 1403242013 is 3102423041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102423041 = 17 ⋅182495473.

It is an interprime number because it is at equal distance from previous prime (1403242007) and next prime (1403242019).

It can be written as a sum of positive squares in 2 ways, for example, as 515380804 + 887861209 = 22702^2 + 29797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403242013 - 2⁸ = 1403241757 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 (1403242019) 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, 1296356 + ... + 1297437.

It is an arithmetic number, because the mean of its divisors is an integer number (351459087).

Almost surely, 2^1403242013 is an apocalyptic number.

It is an amenable number.

1403242013 is a deficient number, since it is larger than the sum of its proper divisors (2594335).

1403242013 is an equidigital number, since it uses as much as digits as its factorization.

1403242013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594334.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1403242013 is about 37459.8720366207. The cubic root of 1403242013 is about 1119.5518011601.

Adding to 1403242013 its reverse (3102423041), we get a palindrome (4505665054).

The spelling of 1403242013 in words is "one billion, four hundred three million, two hundred forty-two thousand, thirteen".