31144321120241 has 24 divisors (see below), whose sum is σ = 36350420004864. Its totient is φ = 26605847345280.

The previous prime is 31144321120117. The next prime is 31144321120261. The reversal of 31144321120241 is 14202112344113.

It is a de Polignac number, because none of the positive numbers 2^k-31144321120241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31144321120261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24932216 + ... + 26151558.

It is an arithmetic number, because the mean of its divisors is an integer number (1514600833536).

Almost surely, 2^{31144321120241} is an apocalyptic number.

It is an amenable number.

31144321120241 is a deficient number, since it is larger than the sum of its proper divisors (5206098884623).

31144321120241 is a wasteful number, since it uses less digits than its factorization.

31144321120241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221101 (or 1221094 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 31144321120241 its reverse (14202112344113), we get a palindrome (45346433464354).

The spelling of 31144321120241 in words is "thirty-one trillion, one hundred forty-four billion, three hundred twenty-one million, one hundred twenty thousand, two hundred forty-one".