421044242103 has 40 divisors (see below), whose sum is σ = 675345353760. Its totient is φ = 260463651840.

The previous prime is 421044242053. The next prime is 421044242141. The reversal of 421044242103 is 301242440124.

421044242103 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 442 + 4 + 210 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-421044242103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421044242153) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2055538 + ... + 2251071.

It is an arithmetic number, because the mean of its divisors is an integer number (16883633844).

Almost surely, 2^421044242103 is an apocalyptic number.

421044242103 is a deficient number, since it is larger than the sum of its proper divisors (254301111657).

421044242103 is a wasteful number, since it uses less digits than its factorization.

421044242103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306709 (or 4306700 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 421044242103 its reverse (301242440124), we get a palindrome (722286682227).

The spelling of 421044242103 in words is "four hundred twenty-one billion, forty-four million, two hundred forty-two thousand, one hundred three".