31140343234 has 48 divisors (see below), whose sum is σ = 63060863040. Its totient is φ = 11199314880.

The previous prime is 31140343217. The next prime is 31140343243. The reversal of 31140343234 is 43234304113.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 572229 + ... + 624280.

It is an arithmetic number, because the mean of its divisors is an integer number (1313767980).

Almost surely, 2^31140343234 is an apocalyptic number.

31140343234 is an abundant number, since it is smaller than the sum of its proper divisors (31920519806).

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

31140343234 is a wasteful number, since it uses less digits than its factorization.

31140343234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196555 (or 1196542 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31140343234 its reverse (43234304113), we get a palindrome (74374647347).

The spelling of 31140343234 in words is "thirty-one billion, one hundred forty million, three hundred forty-three thousand, two hundred thirty-four".