42135001306 has 4 divisors (see below), whose sum is σ = 63202501962. Its totient is φ = 21067500652.

The previous prime is 42135001289. The next prime is 42135001373. The reversal of 42135001306 is 60310053124.

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

It can be written as a sum of positive squares in only one way, i.e., 42131257081 + 3744225 = 205259^2 + 1935^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10533750325 + ... + 10533750328.

Almost surely, 2^42135001306 is an apocalyptic number.

42135001306 is a deficient number, since it is larger than the sum of its proper divisors (21067500656).

42135001306 is a wasteful number, since it uses less digits than its factorization.

42135001306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21067500655.

The product of its (nonzero) digits is 2160, while the sum is 25.

The spelling of 42135001306 in words is "forty-two billion, one hundred thirty-five million, one thousand, three hundred six".