31244243241 has 4 divisors (see below), whose sum is σ = 41658990992. Its totient is φ = 20829495492.

The previous prime is 31244243227. The next prime is 31244243269. The reversal of 31244243241 is 14234244213.

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 not a de Polignac number, because 31244243241 - 2¹⁷ = 31244112169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31244243199 and 31244243208.

It is not an unprimeable number, because it can be changed into a prime (31244243221) 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, 5207373871 + ... + 5207373876.

It is an arithmetic number, because the mean of its divisors is an integer number (10414747748).

Almost surely, 2^31244243241 is an apocalyptic number.

It is an amenable number.

31244243241 is a deficient number, since it is larger than the sum of its proper divisors (10414747751).

31244243241 is a wasteful number, since it uses less digits than its factorization.

31244243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10414747750.

The product of its digits is 18432, while the sum is 30.

Adding to 31244243241 its reverse (14234244213), we get a palindrome (45478487454).

The spelling of 31244243241 in words is "thirty-one billion, two hundred forty-four million, two hundred forty-three thousand, two hundred forty-one".