11312001222003 has 24 divisors (see below), whose sum is σ = 16508784856928. Its totient is φ = 7463236465152.

The previous prime is 11312001221957. The next prime is 11312001222007. The reversal of 11312001222003 is 30022210021311.

It is not a de Polignac number, because 11312001222003 - 2¹⁰ = 11312001220979 is a prime.

It is a super-2 number, since 2×11312001222003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312001222007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18908850 + ... + 19497912.

Almost surely, 2^{11312001222003} is an apocalyptic number.

11312001222003 is a deficient number, since it is larger than the sum of its proper divisors (5196783634925).

11312001222003 is a wasteful number, since it uses less digits than its factorization.

11312001222003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611163 (or 611160 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11312001222003 its reverse (30022210021311), we get a palindrome (41334211243314).

The spelling of 11312001222003 in words is "eleven trillion, three hundred twelve billion, one million, two hundred twenty-two thousand, three".