31240440300241 has 4 divisors (see below), whose sum is σ = 31240462648500. Its totient is φ = 31240417951984.

The previous prime is 31240440300163. The next prime is 31240440300299. The reversal of 31240440300241 is 14200304404213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5112139088016 + 26128301212225 = 2261004^2 + 5111585^2 .

It is a cyclic number.

It is not a de Polignac number, because 31240440300241 - 2¹⁵ = 31240440267473 is a prime.

It is a super-2 number, since 2×31240440300241² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31240440300341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8926606 + ... + 11923303.

It is an arithmetic number, because the mean of its divisors is an integer number (7810115662125).

Almost surely, 2^{31240440300241} is an apocalyptic number.

It is an amenable number.

31240440300241 is a deficient number, since it is larger than the sum of its proper divisors (22348259).

31240440300241 is a wasteful number, since it uses less digits than its factorization.

31240440300241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22348258.

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

Adding to 31240440300241 its reverse (14200304404213), we get a palindrome (45440744704454).

The spelling of 31240440300241 in words is "thirty-one trillion, two hundred forty billion, four hundred forty million, three hundred thousand, two hundred forty-one".