31116752327881 has 8 divisors (see below), whose sum is σ = 33950747268000. Its totient is φ = 28283623933440.

The previous prime is 31116752327863. The next prime is 31116752327887. The reversal of 31116752327881 is 18872325761113.

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

It is a cyclic number.

It is not a de Polignac number, because 31116752327881 - 2⁴³ = 22320659305673 is a prime.

It is a super-2 number, since 2×31116752327881² (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 (31116752327887) 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 7 ways as a sum of consecutive naturals, for example, 216561331 + ... + 216704968.

It is an arithmetic number, because the mean of its divisors is an integer number (4243843408500).

Almost surely, 2^{31116752327881} is an apocalyptic number.

It is an amenable number.

31116752327881 is a deficient number, since it is larger than the sum of its proper divisors (2833994940119).

31116752327881 is a wasteful number, since it uses less digits than its factorization.

31116752327881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433272839.

The product of its digits is 3386880, while the sum is 55.

The spelling of 31116752327881 in words is "thirty-one trillion, one hundred sixteen billion, seven hundred fifty-two million, three hundred twenty-seven thousand, eight hundred eighty-one".