31444431324 has 48 divisors (see below), whose sum is σ = 76578082560. Its totient is φ = 10023439360.

The previous prime is 31444431307. The next prime is 31444431329. The reversal of 31444431324 is 42313444413.

It is a super-2 number, since 2×31444431324² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444431329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491247 + ... + 1512185.

It is an arithmetic number, because the mean of its divisors is an integer number (1595376720).

Almost surely, 2^31444431324 is an apocalyptic number.

It is an amenable number.

31444431324 is an abundant number, since it is smaller than the sum of its proper divisors (45133651236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31444431324 is a wasteful number, since it uses less digits than its factorization.

31444431324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26410 (or 26408 counting only the distinct ones).

The product of its digits is 55296, while the sum is 33.

Adding to 31444431324 its reverse (42313444413), we get a palindrome (73757875737).

The spelling of 31444431324 in words is "thirty-one billion, four hundred forty-four million, four hundred thirty-one thousand, three hundred twenty-four".