42121230033313 has 4 divisors (see below), whose sum is σ = 42835149186480. Its totient is φ = 41407310880148.

The previous prime is 42121230033307. The next prime is 42121230033347. The reversal of 42121230033313 is 31333003212124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42121230033313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42121230033373) 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, 356959576495 + ... + 356959576612.

It is an arithmetic number, because the mean of its divisors is an integer number (10708787296620).

Almost surely, 2^{42121230033313} is an apocalyptic number.

It is an amenable number.

42121230033313 is a deficient number, since it is larger than the sum of its proper divisors (713919153167).

42121230033313 is an equidigital number, since it uses as much as digits as its factorization.

42121230033313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713919153166.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 42121230033313 its reverse (31333003212124), we get a palindrome (73454233245437).

The spelling of 42121230033313 in words is "forty-two trillion, one hundred twenty-one billion, two hundred thirty million, thirty-three thousand, three hundred thirteen".