42031206305 has 16 divisors (see below), whose sum is σ = 55640908800. Its totient is φ = 30224684160.

The previous prime is 42031206263. The next prime is 42031206341. The reversal of 42031206305 is 50360213024.

It is not a de Polignac number, because 42031206305 - 2¹² = 42031202209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4288385 + ... + 4298174.

It is an arithmetic number, because the mean of its divisors is an integer number (3477556800).

Almost surely, 2^42031206305 is an apocalyptic number.

It is an amenable number.

42031206305 is a deficient number, since it is larger than the sum of its proper divisors (13609702495).

42031206305 is a wasteful number, since it uses less digits than its factorization.

42031206305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586664.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 42031206305 its reverse (50360213024), we get a palindrome (92391419329).

The spelling of 42031206305 in words is "forty-two billion, thirty-one million, two hundred six thousand, three hundred five".