31324131444 has 48 divisors (see below), whose sum is σ = 75164822208. Its totient is φ = 10148606208.

The previous prime is 31324131431. The next prime is 31324131451. The reversal of 31324131444 is 44413142313.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162097 + ... + 298200.

It is an arithmetic number, because the mean of its divisors is an integer number (1565933796).

Almost surely, 2^31324131444 is an apocalyptic number.

It is an amenable number.

31324131444 is an abundant number, since it is smaller than the sum of its proper divisors (43840690764).

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

31324131444 is a wasteful number, since it uses less digits than its factorization.

31324131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460464 (or 460462 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

Adding to 31324131444 its reverse (44413142313), we get a palindrome (75737273757).

The spelling of 31324131444 in words is "thirty-one billion, three hundred twenty-four million, one hundred thirty-one thousand, four hundred forty-four".