11212310003 has 4 divisors (see below), whose sum is σ = 11212799400. Its totient is φ = 11211820608.

The previous prime is 11212309993. The next prime is 11212310017. The reversal of 11212310003 is 30001321211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30001321211 = 109 ⋅275241479.

It is a cyclic number.

It is not a de Polignac number, because 11212310003 - 2⁴ = 11212309987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212310003.

It is not an unprimeable number, because it can be changed into a prime (11212315003) 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, 208553 + ... + 256746.

It is an arithmetic number, because the mean of its divisors is an integer number (2803199850).

Almost surely, 2^11212310003 is an apocalyptic number.

11212310003 is a deficient number, since it is larger than the sum of its proper divisors (489397).

11212310003 is an equidigital number, since it uses as much as digits as its factorization.

11212310003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489396.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11212310003 its reverse (30001321211), we get a palindrome (41213631214).

The spelling of 11212310003 in words is "eleven billion, two hundred twelve million, three hundred ten thousand, three".