31240434421010 has 16 divisors (see below), whose sum is σ = 56864610970200. Its totient is φ = 12355767321216.

The previous prime is 31240434420941. The next prime is 31240434421033. The reversal of 31240434421010 is 1012443404213.

It can be written as a sum of positive squares in 4 ways, for example, as 21211615838449 + 10028818582561 = 4605607^2 + 3166831^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17550804965 + ... + 17550806744.

Almost surely, 2^{31240434421010} is an apocalyptic number.

31240434421010 is a deficient number, since it is larger than the sum of its proper divisors (25624176549190).

31240434421010 is a wasteful number, since it uses less digits than its factorization.

31240434421010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35101611805.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31240434421010 its reverse (1012443404213), we get a palindrome (32252877825223).

The spelling of 31240434421010 in words is "thirty-one trillion, two hundred forty billion, four hundred thirty-four million, four hundred twenty-one thousand, ten".