31041440032 has 24 divisors (see below), whose sum is σ = 61116999552. Its totient is φ = 15519662400.

The previous prime is 31041440029. The next prime is 31041440039. The reversal of 31041440032 is 23004414013.

It is a super-2 number, since 2×31041440032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31041439985 and 31041440012.

It is not an unprimeable number, because it can be changed into a prime (31041440039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681657 + ... + 725767.

It is an arithmetic number, because the mean of its divisors is an integer number (2546541648).

Almost surely, 2^31041440032 is an apocalyptic number.

31041440032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31041440032 is a deficient number, since it is larger than the sum of its proper divisors (30075559520).

31041440032 is a wasteful number, since it uses less digits than its factorization.

31041440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66112 (or 66104 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31041440032 its reverse (23004414013), we get a palindrome (54045854045).

The spelling of 31041440032 in words is "thirty-one billion, forty-one million, four hundred forty thousand, thirty-two".