31324240430 has 16 divisors (see below), whose sum is σ = 64438437600. Its totient is φ = 10739739552.

The previous prime is 31324240403. The next prime is 31324240433. The reversal of 31324240430 is 3404242313.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31324240430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324240433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 223744505 + ... + 223744644.

It is an arithmetic number, because the mean of its divisors is an integer number (4027402350).

Almost surely, 2^31324240430 is an apocalyptic number.

31324240430 is an abundant number, since it is smaller than the sum of its proper divisors (33114197170).

31324240430 is a wasteful number, since it uses less digits than its factorization.

31324240430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447489163.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31324240430 its reverse (3404242313), we get a palindrome (34728482743).

The spelling of 31324240430 in words is "thirty-one billion, three hundred twenty-four million, two hundred forty thousand, four hundred thirty".