42121341003 has 16 divisors (see below), whose sum is σ = 64298923776. Its totient is φ = 24026579040.

The previous prime is 42121340993. The next prime is 42121341011. The reversal of 42121341003 is 30014312124.

It is not a de Polignac number, because 42121341003 - 2⁸ = 42121340747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (42121341043) 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, 1769508 + ... + 1793153.

It is an arithmetic number, because the mean of its divisors is an integer number (4018682736).

Almost surely, 2^42121341003 is an apocalyptic number.

42121341003 is a deficient number, since it is larger than the sum of its proper divisors (22177582773).

42121341003 is a wasteful number, since it uses less digits than its factorization.

42121341003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563234.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 42121341003 its reverse (30014312124), we get a palindrome (72135653127).

The spelling of 42121341003 in words is "forty-two billion, one hundred twenty-one million, three hundred forty-one thousand, three".