42300030121 has 4 divisors (see below), whose sum is σ = 42320070144. Its totient is φ = 42279990100.

The previous prime is 42300030067. The next prime is 42300030161. The reversal of 42300030121 is 12103000324.

It is a happy number.

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 not a de Polignac number, because 42300030121 - 2⁹ = 42300029609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42300030095 and 42300030104.

It is not an unprimeable number, because it can be changed into a prime (42300030161) 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 3 ways as a sum of consecutive naturals, for example, 10016845 + ... + 10021066.

It is an arithmetic number, because the mean of its divisors is an integer number (10580017536).

Almost surely, 2^42300030121 is an apocalyptic number.

It is an amenable number.

42300030121 is a deficient number, since it is larger than the sum of its proper divisors (20040023).

42300030121 is a wasteful number, since it uses less digits than its factorization.

42300030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20040022.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 42300030121 its reverse (12103000324), we get a palindrome (54403030445).

The spelling of 42300030121 in words is "forty-two billion, three hundred million, thirty thousand, one hundred twenty-one".