31243401241 has 8 divisors (see below), whose sum is σ = 35417621120. Its totient is φ = 27322164432.

The previous prime is 31243401209. The next prime is 31243401251. The reversal of 31243401241 is 14210434213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31243401241 - 2⁵ = 31243401209 is a prime.

It is a super-2 number, since 2×31243401241² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31243401251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63245505 + ... + 63245998.

It is an arithmetic number, because the mean of its divisors is an integer number (4427202640).

Almost surely, 2^31243401241 is an apocalyptic number.

It is an amenable number.

31243401241 is a deficient number, since it is larger than the sum of its proper divisors (4174219879).

31243401241 is a wasteful number, since it uses less digits than its factorization.

31243401241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126491535.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31243401241 its reverse (14210434213), we get a palindrome (45453835454).

The spelling of 31243401241 in words is "thirty-one billion, two hundred forty-three million, four hundred one thousand, two hundred forty-one".