31144020335056 has 40 divisors (see below), whose sum is σ = 60906613512960. Its totient is φ = 15426190013184.

The previous prime is 31144020335011. The next prime is 31144020335189. The reversal of 31144020335056 is 65053302044113.

It is a congruent number.

It is an unprimeable number.

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, 114377985 + ... + 114649951.

It is an arithmetic number, because the mean of its divisors is an integer number (1522665337824).

Almost surely, 2^{31144020335056} is an apocalyptic number.

It is an amenable number.

31144020335056 is a deficient number, since it is larger than the sum of its proper divisors (29762593177904).

31144020335056 is a wasteful number, since it uses less digits than its factorization.

31144020335056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338971 (or 338965 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 31144020335056 its reverse (65053302044113), we get a palindrome (96197322379169).

The spelling of 31144020335056 in words is "thirty-one trillion, one hundred forty-four billion, twenty million, three hundred thirty-five thousand, fifty-six".