31001243340131 has 8 divisors (see below), whose sum is σ = 32081800338720. Its totient is φ = 29921456248768.

The previous prime is 31001243340103. The next prime is 31001243340167. The reversal of 31001243340131 is 13104334210013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31001243340131 is a prime.

It is a super-2 number, since 2×31001243340131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31001243340131.

It is not an unprimeable number, because it can be changed into a prime (31001243340101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192394871 + ... + 192555936.

It is an arithmetic number, because the mean of its divisors is an integer number (4010225042340).

Almost surely, 2^{31001243340131} is an apocalyptic number.

31001243340131 is a deficient number, since it is larger than the sum of its proper divisors (1080556998589).

31001243340131 is a wasteful number, since it uses less digits than its factorization.

31001243340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384953613.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31001243340131 its reverse (13104334210013), we get a palindrome (44105577550144).

The spelling of 31001243340131 in words is "thirty-one trillion, one billion, two hundred forty-three million, three hundred forty thousand, one hundred thirty-one".