42121330203 has 8 divisors (see below), whose sum is σ = 56209738816. Its totient is φ = 28056904200.

The previous prime is 42121330201. The next prime is 42121330211. The reversal of 42121330203 is 30203312124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42121330203 - 2¹ = 42121330201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42121330203.

It is not an unprimeable number, because it can be changed into a prime (42121330201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5991553 + ... + 5998578.

It is an arithmetic number, because the mean of its divisors is an integer number (7026217352).

Almost surely, 2^42121330203 is an apocalyptic number.

42121330203 is a deficient number, since it is larger than the sum of its proper divisors (14088408613).

42121330203 is a wasteful number, since it uses less digits than its factorization.

42121330203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991305.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 42121330203 its reverse (30203312124), we get a palindrome (72324642327).

The spelling of 42121330203 in words is "forty-two billion, one hundred twenty-one million, three hundred thirty thousand, two hundred three".