42476532121 has 4 divisors (see below), whose sum is σ = 42914434612. Its totient is φ = 42038629632.

The previous prime is 42476532083. The next prime is 42476532143. The reversal of 42476532121 is 12123567424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17847624025 + 24628908096 = 133595^2 + 156936^2 .

It is a cyclic number.

It is not a de Polignac number, because 42476532121 - 2¹⁷ = 42476401049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42476532151) 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, 218951100 + ... + 218951293.

It is an arithmetic number, because the mean of its divisors is an integer number (10728608653).

Almost surely, 2^42476532121 is an apocalyptic number.

It is an amenable number.

42476532121 is a deficient number, since it is larger than the sum of its proper divisors (437902491).

42476532121 is an equidigital number, since it uses as much as digits as its factorization.

42476532121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437902490.

The product of its digits is 80640, while the sum is 37.

The spelling of 42476532121 in words is "forty-two billion, four hundred seventy-six million, five hundred thirty-two thousand, one hundred twenty-one".