110405233421 has 28 divisors (see below), whose sum is σ = 135587954880. Its totient is φ = 89650554840.

The previous prime is 110405233403. The next prime is 110405233441. The reversal of 110405233421 is 124332504011.

It is a happy number.

It is not a de Polignac number, because 110405233421 - 2⁶ = 110405233357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110405233441) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2210636 + ... + 2260026.

It is an arithmetic number, because the mean of its divisors is an integer number (4842426960).

Almost surely, 2^110405233421 is an apocalyptic number.

It is an amenable number.

110405233421 is a deficient number, since it is larger than the sum of its proper divisors (25182721459).

110405233421 is an frugal number, since it uses more digits than its factorization.

110405233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49452 (or 49417 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 110405233421 its reverse (124332504011), we get a palindrome (234737737432).

The spelling of 110405233421 in words is "one hundred ten billion, four hundred five million, two hundred thirty-three thousand, four hundred twenty-one".