31440232441 has 4 divisors (see below), whose sum is σ = 31442054800. Its totient is φ = 31438410084.

The previous prime is 31440232433. The next prime is 31440232459. The reversal of 31440232441 is 14423204413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31440232441 - 2³ = 31440232433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31440233441) 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, 885051 + ... + 919888.

It is an arithmetic number, because the mean of its divisors is an integer number (7860513700).

Almost surely, 2^31440232441 is an apocalyptic number.

It is an amenable number.

31440232441 is a deficient number, since it is larger than the sum of its proper divisors (1822359).

31440232441 is a wasteful number, since it uses less digits than its factorization.

31440232441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822358.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31440232441 its reverse (14423204413), we get a palindrome (45863436854).

The spelling of 31440232441 in words is "thirty-one billion, four hundred forty million, two hundred thirty-two thousand, four hundred forty-one".