31140124344 has 96 divisors (see below), whose sum is σ = 96595000320. Its totient is φ = 8877895488.

The previous prime is 31140124333. The next prime is 31140124349. The reversal of 31140124344 is 44342104113.

31140124344 is a `hidden beast` number, since 3 + 11 + 401 + 243 + 4 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31140124349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166629 + ... + 300075.

It is an arithmetic number, because the mean of its divisors is an integer number (1006197920).

Almost surely, 2^31140124344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31140124344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48297500160).

31140124344 is an abundant number, since it is smaller than the sum of its proper divisors (65454875976).

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

31140124344 is a wasteful number, since it uses less digits than its factorization.

31140124344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133929 (or 133922 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31140124344 its reverse (44342104113), we get a palindrome (75482228457).

The spelling of 31140124344 in words is "thirty-one billion, one hundred forty million, one hundred twenty-four thousand, three hundred forty-four".