31330442001 has 32 divisors (see below), whose sum is σ = 44424011520. Its totient is φ = 19610035200.

The previous prime is 31330441991. The next prime is 31330442083. The reversal of 31330442001 is 10024403313.

It is not a de Polignac number, because 31330442001 - 2⁹ = 31330441489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31330442201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416181 + ... + 485661.

It is an arithmetic number, because the mean of its divisors is an integer number (1388250360).

Almost surely, 2^31330442001 is an apocalyptic number.

It is an amenable number.

31330442001 is a deficient number, since it is larger than the sum of its proper divisors (13093569519).

31330442001 is a wasteful number, since it uses less digits than its factorization.

31330442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69657.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31330442001 its reverse (10024403313), we get a palindrome (41354845314).

The spelling of 31330442001 in words is "thirty-one billion, three hundred thirty million, four hundred forty-two thousand, one".