110421131243 has 4 divisors (see below), whose sum is σ = 113114329608. Its totient is φ = 107727932880.

The previous prime is 110421131221. The next prime is 110421131251. The reversal of 110421131243 is 342131124011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342131124011 = 61 ⋅5608706951.

It is a cyclic number.

It is not a de Polignac number, because 110421131243 - 2⁶ = 110421131179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (110421131213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346599121 + ... + 1346599202.

It is an arithmetic number, because the mean of its divisors is an integer number (28278582402).

Almost surely, 2^110421131243 is an apocalyptic number.

110421131243 is a deficient number, since it is larger than the sum of its proper divisors (2693198365).

110421131243 is an equidigital number, since it uses as much as digits as its factorization.

110421131243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693198364.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 110421131243 its reverse (342131124011), we get a palindrome (452552255254).

The spelling of 110421131243 in words is "one hundred ten billion, four hundred twenty-one million, one hundred thirty-one thousand, two hundred forty-three".