11312012422 has 16 divisors (see below), whose sum is σ = 17438530032. Its totient is φ = 5500068480.

The previous prime is 11312012419. The next prime is 11312012431. The reversal of 11312012422 is 22421021311.

11312012422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11312012422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199503 + ... + 249850.

It is an arithmetic number, because the mean of its divisors is an integer number (1089908127).

Almost surely, 2^11312012422 is an apocalyptic number.

11312012422 is a deficient number, since it is larger than the sum of its proper divisors (6126517610).

11312012422 is a wasteful number, since it uses less digits than its factorization.

11312012422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449703.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11312012422 its reverse (22421021311), we get a palindrome (33733033733).

The spelling of 11312012422 in words is "eleven billion, three hundred twelve million, twelve thousand, four hundred twenty-two".