31030032242 has 32 divisors (see below), whose sum is σ = 52933436928. Its totient is φ = 13514400000.

The previous prime is 31030032227. The next prime is 31030032259. The reversal of 31030032242 is 24223003013.

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 in 15 ways as a sum of consecutive naturals, for example, 156359 + ... + 294122.

It is an arithmetic number, because the mean of its divisors is an integer number (1654169904).

Almost surely, 2^31030032242 is an apocalyptic number.

31030032242 is a deficient number, since it is larger than the sum of its proper divisors (21903404686).

31030032242 is a wasteful number, since it uses less digits than its factorization.

31030032242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450626.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31030032242 its reverse (24223003013), we get a palindrome (55253035255).

The spelling of 31030032242 in words is "thirty-one billion, thirty million, thirty-two thousand, two hundred forty-two".