31243244440424 has 16 divisors (see below), whose sum is σ = 59406169007520. Its totient is φ = 15401599371760.

The previous prime is 31243244440423. The next prime is 31243244440427. The reversal of 31243244440424 is 42404444234213.

It is a super-2 number, since 2×31243244440424² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31243244440423) 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, 27502855454 + ... + 27502856589.

It is an arithmetic number, because the mean of its divisors is an integer number (3712885562970).

Almost surely, 2^{31243244440424} is an apocalyptic number.

It is an amenable number.

31243244440424 is a deficient number, since it is larger than the sum of its proper divisors (28162924567096).

31243244440424 is a wasteful number, since it uses less digits than its factorization.

31243244440424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55005712120 (or 55005712116 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 41.

Adding to 31243244440424 its reverse (42404444234213), we get a palindrome (73647688674637).

The spelling of 31243244440424 in words is "thirty-one trillion, two hundred forty-three billion, two hundred forty-four million, four hundred forty thousand, four hundred twenty-four".