42400124103 has 16 divisors (see below), whose sum is σ = 56791526400. Its totient is φ = 28137826080.

The previous prime is 42400124077. The next prime is 42400124161. The reversal of 42400124103 is 30142100424.

It is not a de Polignac number, because 42400124103 - 2¹⁴ = 42400107719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42400124103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400124003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185078 + ... + 2204396.

It is an arithmetic number, because the mean of its divisors is an integer number (3549470400).

Almost surely, 2^42400124103 is an apocalyptic number.

42400124103 is a deficient number, since it is larger than the sum of its proper divisors (14391402297).

42400124103 is a wasteful number, since it uses less digits than its factorization.

42400124103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22622.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42400124103 its reverse (30142100424), we get a palindrome (72542224527).

The spelling of 42400124103 in words is "forty-two billion, four hundred million, one hundred twenty-four thousand, one hundred three".