31040043234 has 64 divisors (see below), whose sum is σ = 66111552000. Its totient is φ = 9687938688.

The previous prime is 31040043233. The next prime is 31040043239. The reversal of 31040043234 is 43234004013.

It is not an unprimeable number, because it can be changed into a prime (31040043233) 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, 5693742 + ... + 5699190.

It is an arithmetic number, because the mean of its divisors is an integer number (1032993000).

Almost surely, 2^31040043234 is an apocalyptic number.

31040043234 is an abundant number, since it is smaller than the sum of its proper divisors (35071508766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31040043234 is a wasteful number, since it uses less digits than its factorization.

31040043234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31040043234 its reverse (43234004013), we get a palindrome (74274047247).

The spelling of 31040043234 in words is "thirty-one billion, forty million, forty-three thousand, two hundred thirty-four".