1110173421 has 16 divisors (see below), whose sum is σ = 1705017344. Its totient is φ = 629388144.

The previous prime is 1110173411. The next prime is 1110173429. The reversal of 1110173421 is 1243710111.

It is not a de Polignac number, because 1110173421 - 2⁶ = 1110173357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110173429) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 205465 + ... + 210798.

It is an arithmetic number, because the mean of its divisors is an integer number (106563584).

Almost surely, 2^1110173421 is an apocalyptic number.

It is an amenable number.

1110173421 is a deficient number, since it is larger than the sum of its proper divisors (594843923).

1110173421 is a wasteful number, since it uses less digits than its factorization.

1110173421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416400.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1110173421 is about 33319.2650129021. The cubic root of 1110173421 is about 1035.4527245312.

Adding to 1110173421 its reverse (1243710111), we get a palindrome (2353883532).

The spelling of 1110173421 in words is "one billion, one hundred ten million, one hundred seventy-three thousand, four hundred twenty-one".