110403020421 has 24 divisors (see below), whose sum is σ = 163127424096. Its totient is φ = 71925516000.

The previous prime is 110403020419. The next prime is 110403020443. The reversal of 110403020421 is 124020304011.

It is not a de Polignac number, because 110403020421 - 2¹ = 110403020419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110403020394 and 110403020403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110403020401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341335 + ... + 580788.

It is an arithmetic number, because the mean of its divisors is an integer number (6796976004).

Almost surely, 2^110403020421 is an apocalyptic number.

It is an amenable number.

110403020421 is a deficient number, since it is larger than the sum of its proper divisors (52724403675).

110403020421 is a wasteful number, since it uses less digits than its factorization.

110403020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922433 (or 922430 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 110403020421 its reverse (124020304011), we get a palindrome (234423324432).

The spelling of 110403020421 in words is "one hundred ten billion, four hundred three million, twenty thousand, four hundred twenty-one".