110123043421 has 4 divisors (see below), whose sum is σ = 110125026144. Its totient is φ = 110121060700.

The previous prime is 110123043397. The next prime is 110123043431. The reversal of 110123043421 is 124340321011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124340321011 = 53987 ⋅2303153.

It is a cyclic number.

It is not a de Polignac number, because 110123043421 - 2¹³ = 110123035229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110123043392 and 110123043401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110123043431) 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 3 ways as a sum of consecutive naturals, for example, 905575 + ... + 1019956.

It is an arithmetic number, because the mean of its divisors is an integer number (27531256536).

Almost surely, 2^110123043421 is an apocalyptic number.

It is an amenable number.

110123043421 is a deficient number, since it is larger than the sum of its proper divisors (1982723).

110123043421 is an equidigital number, since it uses as much as digits as its factorization.

110123043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982722.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 110123043421 its reverse (124340321011), we get a palindrome (234463364432).

The spelling of 110123043421 in words is "one hundred ten billion, one hundred twenty-three million, forty-three thousand, four hundred twenty-one".