11312003133 has 32 divisors (see below), whose sum is σ = 17927320320. Its totient is φ = 7024527360.

The previous prime is 11312003069. The next prime is 11312003147. The reversal of 11312003133 is 33130021311.

It is a happy number.

It is not a de Polignac number, because 11312003133 - 2⁶ = 11312003069 is a prime.

It is a super-2 number, since 2×11312003133² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312008133) 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 31 ways as a sum of consecutive naturals, for example, 82513 + ... + 171558.

It is an arithmetic number, because the mean of its divisors is an integer number (560228760).

Almost surely, 2^11312003133 is an apocalyptic number.

It is an amenable number.

11312003133 is a deficient number, since it is larger than the sum of its proper divisors (6615317187).

11312003133 is a wasteful number, since it uses less digits than its factorization.

11312003133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254194 (or 254188 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11312003133 its reverse (33130021311), we get a palindrome (44442024444).

The spelling of 11312003133 in words is "eleven billion, three hundred twelve million, three thousand, one hundred thirty-three".