11973001 has 4 divisors (see below), whose sum is σ = 12096532. Its totient is φ = 11849472.

The previous prime is 11972993. The next prime is 11973023. The reversal of 11973001 is 10037911.

11973001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10037911 = 13 ⋅772147.

It can be written as a sum of positive squares in 2 ways, for example, as 6497401 + 5475600 = 2549^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 11973001 - 2³ = 11972993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11973701) 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, 61620 + ... + 61813.

It is an arithmetic number, because the mean of its divisors is an integer number (3024133).

Almost surely, 2^11973001 is an apocalyptic number.

It is an amenable number.

11973001 is a deficient number, since it is larger than the sum of its proper divisors (123531).

11973001 is an equidigital number, since it uses as much as digits as its factorization.

11973001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123530.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 11973001 is about 3460.2024507245. The cubic root of 11973001 is about 228.7710188018.

The spelling of 11973001 in words is "eleven million, nine hundred seventy-three thousand, one".