110440102421 has 16 divisors (see below), whose sum is σ = 131014946880. Its totient is φ = 91940302080.

The previous prime is 110440102393. The next prime is 110440102439. The reversal of 110440102421 is 124201044011.

It is a de Polignac number, because none of the positive numbers 2^k-110440102421 is a prime.

It is a super-2 number, since 2×110440102421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110440102393 and 110440102402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110440102021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7974011 + ... + 7987848.

It is an arithmetic number, because the mean of its divisors is an integer number (8188434180).

Almost surely, 2^110440102421 is an apocalyptic number.

110440102421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110440102421 is a deficient number, since it is larger than the sum of its proper divisors (20574844459).

110440102421 is a wasteful number, since it uses less digits than its factorization.

110440102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15961924.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 110440102421 its reverse (124201044011), we get a palindrome (234641146432).

The spelling of 110440102421 in words is "one hundred ten billion, four hundred forty million, one hundred two thousand, four hundred twenty-one".