31230244424 has 8 divisors (see below), whose sum is σ = 58556708310. Its totient is φ = 15615122208.

The previous prime is 31230244421. The next prime is 31230244427. The reversal of 31230244424 is 42444203213.

It is an interprime number because it is at equal distance from previous prime (31230244421) and next prime (31230244427).

It can be written as a sum of positive squares in only one way, i.e., 30175164100 + 1055080324 = 173710^2 + 32482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (31230244421) 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 as a sum of consecutive naturals, namely, 1951890269 + ... + 1951890284.

Almost surely, 2^31230244424 is an apocalyptic number.

It is an amenable number.

31230244424 is a deficient number, since it is larger than the sum of its proper divisors (27326463886).

31230244424 is a wasteful number, since it uses less digits than its factorization.

31230244424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903780559 (or 3903780555 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 31230244424 its reverse (42444203213), we get a palindrome (73674447637).

The spelling of 31230244424 in words is "thirty-one billion, two hundred thirty million, two hundred forty-four thousand, four hundred twenty-four".