42121011113303 has 4 divisors (see below), whose sum is σ = 42121056310200. Its totient is φ = 42120965916408.

The previous prime is 42121011113257. The next prime is 42121011113333. The reversal of 42121011113303 is 30331111012124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42121011113303 - 2⁸ = 42121011113047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121011113333) 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, 21170453 + ... + 23074446.

It is an arithmetic number, because the mean of its divisors is an integer number (10530264077550).

Almost surely, 2^{42121011113303} is an apocalyptic number.

42121011113303 is a deficient number, since it is larger than the sum of its proper divisors (45196897).

42121011113303 is an equidigital number, since it uses as much as digits as its factorization.

42121011113303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45196896.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 42121011113303 its reverse (30331111012124), we get a palindrome (72452122125427).

The spelling of 42121011113303 in words is "forty-two trillion, one hundred twenty-one billion, eleven million, one hundred thirteen thousand, three hundred three".