12001402003 has 4 divisors (see below), whose sum is σ = 12633054760. Its totient is φ = 11369749248.

The previous prime is 12001401989. The next prime is 12001402033. The reversal of 12001402003 is 30020410021.

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

It is a cyclic number.

It is not a de Polignac number, because 12001402003 - 2²¹ = 11999304851 is a prime.

It is a super-2 number, since 2×12001402003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001402033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315826350 + ... + 315826387.

It is an arithmetic number, because the mean of its divisors is an integer number (3158263690).

Almost surely, 2^12001402003 is an apocalyptic number.

12001402003 is a deficient number, since it is larger than the sum of its proper divisors (631652757).

12001402003 is an equidigital number, since it uses as much as digits as its factorization.

12001402003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631652756.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12001402003 its reverse (30020410021), we get a palindrome (42021812024).

The spelling of 12001402003 in words is "twelve billion, one million, four hundred two thousand, three".