11403421110 has 32 divisors (see below), whose sum is σ = 30409123680. Its totient is φ = 3040912224.

The previous prime is 11403421079. The next prime is 11403421111. The reversal of 11403421110 is 1112430411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403421111) 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 15 ways as a sum of consecutive naturals, for example, 21117177 + ... + 21117716.

It is an arithmetic number, because the mean of its divisors is an integer number (950285115).

Almost surely, 2^11403421110 is an apocalyptic number.

11403421110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11403421110 is an abundant number, since it is smaller than the sum of its proper divisors (19005702570).

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

11403421110 is a wasteful number, since it uses less digits than its factorization.

11403421110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42234909 (or 42234903 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11403421110 its reverse (1112430411), we get a palindrome (12515851521).

The spelling of 11403421110 in words is "eleven billion, four hundred three million, four hundred twenty-one thousand, one hundred ten".