11312002003 has 2 divisors, whose sum is σ = 11312002004. Its totient is φ = 11312002002.

The previous prime is 11312002001. The next prime is 11312002007. The reversal of 11312002003 is 30020021311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11312002003 - 2¹ = 11312002001 is a prime.

It is a super-2 number, since 2×11312002003² (a number of 21 digits) contains 22 as substring.

Together with 11312002001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11312002001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656001001 + 5656001002.

It is an arithmetic number, because the mean of its divisors is an integer number (5656001002).

Almost surely, 2^11312002003 is an apocalyptic number.

11312002003 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312002003 is an equidigital number, since it uses as much as digits as its factorization.

11312002003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11312002003 its reverse (30020021311), we get a palindrome (41332023314).

The spelling of 11312002003 in words is "eleven billion, three hundred twelve million, two thousand, three".