11211423104 has 128 divisors (see below), whose sum is σ = 26411374080. Its totient is φ = 4640624640.

The previous prime is 11211423101. The next prime is 11211423107. The reversal of 11211423104 is 40132411211.

It is an interprime number because it is at equal distance from previous prime (11211423101) and next prime (11211423107).

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211423101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3782327 + ... + 3785289.

It is an arithmetic number, because the mean of its divisors is an integer number (206338860).

Almost surely, 2^11211423104 is an apocalyptic number.

11211423104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211423104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13205687040).

11211423104 is an abundant number, since it is smaller than the sum of its proper divisors (15199950976).

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

11211423104 is a wasteful number, since it uses less digits than its factorization.

11211423104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11211423104 its reverse (40132411211), we get a palindrome (51343834315).

The spelling of 11211423104 in words is "eleven billion, two hundred eleven million, four hundred twenty-three thousand, one hundred four".