31243303244 has 12 divisors (see below), whose sum is σ = 54677071344. Its totient is φ = 15621282864.

The previous prime is 31243303199. The next prime is 31243303271. The reversal of 31243303244 is 44230334213.

It is a super-2 number, since 2×31243303244² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204617 + ... + 323039.

It is an arithmetic number, because the mean of its divisors is an integer number (4556422612).

Almost surely, 2^31243303244 is an apocalyptic number.

It is an amenable number.

31243303244 is a deficient number, since it is larger than the sum of its proper divisors (23433768100).

31243303244 is a wasteful number, since it uses less digits than its factorization.

31243303244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184384 (or 184382 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 31243303244 its reverse (44230334213), we get a palindrome (75473637457).

The spelling of 31243303244 in words is "thirty-one billion, two hundred forty-three million, three hundred three thousand, two hundred forty-four".