11403001 has 4 divisors (see below), whose sum is σ = 11516004. Its totient is φ = 11290000.

The previous prime is 11402977. The next prime is 11403013. The reversal of 11403001 is 10030411.

It is a happy number.

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 11048976 + 354025 = 3324^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 11403001 - 2⁷ = 11402873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11403701) 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, 56350 + ... + 56551.

It is an arithmetic number, because the mean of its divisors is an integer number (2879001).

Almost surely, 2^11403001 is an apocalyptic number.

It is an amenable number.

11403001 is a deficient number, since it is larger than the sum of its proper divisors (113003).

11403001 is a wasteful number, since it uses less digits than its factorization.

11403001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113002.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11403001 is about 3376.8329837290. The cubic root of 11403001 is about 225.0814585712.

Adding to 11403001 its reverse (10030411), we get a palindrome (21433412).

The spelling of 11403001 in words is "eleven million, four hundred three thousand, one".