110555553421 has 4 divisors (see below), whose sum is σ = 110629803100. Its totient is φ = 110481303744.

The previous prime is 110555553389. The next prime is 110555553431. The reversal of 110555553421 is 124355555011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124355555011 = 967 ⋅128599333.

It can be written as a sum of positive squares in 2 ways, for example, as 50270572521 + 60284980900 = 224211^2 + 245530^2 .

It is a cyclic number.

It is not a de Polignac number, because 110555553421 - 2⁵ = 110555553389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110555553431) 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, 37122606 + ... + 37125583.

It is an arithmetic number, because the mean of its divisors is an integer number (27657450775).

Almost surely, 2^110555553421 is an apocalyptic number.

It is an amenable number.

110555553421 is a deficient number, since it is larger than the sum of its proper divisors (74249679).

110555553421 is an equidigital number, since it uses as much as digits as its factorization.

110555553421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74249678.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 110555553421 in words is "one hundred ten billion, five hundred fifty-five million, five hundred fifty-three thousand, four hundred twenty-one".