110103421021 has 4 divisors (see below), whose sum is σ = 120112822944. Its totient is φ = 100094019100.

The previous prime is 110103420979. The next prime is 110103421033. The reversal of 110103421021 is 120124301011.

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.

It is a cyclic number.

It is not a de Polignac number, because 110103421021 - 2¹⁹ = 110102896733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110103420986 and 110103421004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110103421121) 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, 5004700945 + ... + 5004700966.

It is an arithmetic number, because the mean of its divisors is an integer number (30028205736).

Almost surely, 2^110103421021 is an apocalyptic number.

110103421021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110103421021 is a deficient number, since it is larger than the sum of its proper divisors (10009401923).

110103421021 is a wasteful number, since it uses less digits than its factorization.

110103421021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009401922.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 110103421021 its reverse (120124301011), we get a palindrome (230227722032).

The spelling of 110103421021 in words is "one hundred ten billion, one hundred three million, four hundred twenty-one thousand, twenty-one".