31441140024 has 128 divisors (see below), whose sum is σ = 93840215040. Its totient is φ = 8583201792.

The previous prime is 31441140023. The next prime is 31441140041. The reversal of 31441140024 is 42004114413.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 31441139976 and 31441140003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441140023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3987574 + ... + 3995450.

It is an arithmetic number, because the mean of its divisors is an integer number (733126680).

Almost surely, 2^31441140024 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 31441140024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46920107520).

31441140024 is an abundant number, since it is smaller than the sum of its proper divisors (62399075016).

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

31441140024 is a wasteful number, since it uses less digits than its factorization.

31441140024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8949 (or 8945 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31441140024 its reverse (42004114413), we get a palindrome (73445254437).

The spelling of 31441140024 in words is "thirty-one billion, four hundred forty-one million, one hundred forty thousand, twenty-four".