11271623442 has 16 divisors (see below), whose sum is σ = 22660053600. Its totient is φ = 3737740032.

The previous prime is 11271623431. The next prime is 11271623443. The reversal of 11271623442 is 24432617211.

It is not an unprimeable number, because it can be changed into a prime (11271623443) 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 7 ways as a sum of consecutive naturals, for example, 4865692 + ... + 4868007.

It is an arithmetic number, because the mean of its divisors is an integer number (1416253350).

Almost surely, 2^11271623442 is an apocalyptic number.

11271623442 is an abundant number, since it is smaller than the sum of its proper divisors (11388430158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11271623442 is a wasteful number, since it uses less digits than its factorization.

11271623442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733897.

The product of its digits is 16128, while the sum is 33.

The spelling of 11271623442 in words is "eleven billion, two hundred seventy-one million, six hundred twenty-three thousand, four hundred forty-two".