31553044324 has 12 divisors (see below), whose sum is σ = 55221276544. Its totient is φ = 15775536744.

The previous prime is 31553044321. The next prime is 31553044331. The reversal of 31553044324 is 42344035513.

It is a happy number.

It is a super-2 number, since 2×31553044324² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31553044324.

It is not an unprimeable number, because it can be changed into a prime (31553044321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171804 + ... + 304339.

Almost surely, 2^31553044324 is an apocalyptic number.

It is an amenable number.

31553044324 is a deficient number, since it is larger than the sum of its proper divisors (23668232220).

31553044324 is a wasteful number, since it uses less digits than its factorization.

31553044324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492714 (or 492712 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 31553044324 its reverse (42344035513), we get a palindrome (73897079837).

The spelling of 31553044324 in words is "thirty-one billion, five hundred fifty-three million, forty-four thousand, three hundred twenty-four".