31001120241 has 64 divisors (see below), whose sum is σ = 52937515008. Its totient is φ = 15702006528.

The previous prime is 31001120237. The next prime is 31001120251. The reversal of 31001120241 is 14202110013.

It is not a de Polignac number, because 31001120241 - 2² = 31001120237 is a prime.

It is a super-2 number, since 2×31001120241² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31001120241.

It is not an unprimeable number, because it can be changed into a prime (31001120231) 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 63 ways as a sum of consecutive naturals, for example, 657250 + ... + 702836.

It is an arithmetic number, because the mean of its divisors is an integer number (827148672).

Almost surely, 2^31001120241 is an apocalyptic number.

It is an amenable number.

31001120241 is a deficient number, since it is larger than the sum of its proper divisors (21936394767).

31001120241 is a wasteful number, since it uses less digits than its factorization.

31001120241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45710.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 31001120241 its reverse (14202110013), we get a palindrome (45203230254).

The spelling of 31001120241 in words is "thirty-one billion, one million, one hundred twenty thousand, two hundred forty-one".