31001243361 has 8 divisors (see below), whose sum is σ = 45092717664. Its totient is φ = 18788632320.

The previous prime is 31001243347. The next prime is 31001243387. The reversal of 31001243361 is 16334210013.

It is a happy number.

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

It is not a de Polignac number, because 31001243361 - 2⁷ = 31001243233 is a prime.

It is a super-2 number, since 2×31001243361² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31001242361) 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, 469715776 + ... + 469715841.

It is an arithmetic number, because the mean of its divisors is an integer number (5636589708).

Almost surely, 2^31001243361 is an apocalyptic number.

It is an amenable number.

31001243361 is a deficient number, since it is larger than the sum of its proper divisors (14091474303).

31001243361 is a wasteful number, since it uses less digits than its factorization.

31001243361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939431631.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31001243361 its reverse (16334210013), we get a palindrome (47335453374).

The spelling of 31001243361 in words is "thirty-one billion, one million, two hundred forty-three thousand, three hundred sixty-one".