31143230214424 has 16 divisors (see below), whose sum is σ = 58394845832400. Its totient is φ = 15571271325792.

The previous prime is 31143230214413. The next prime is 31143230214427. The reversal of 31143230214424 is 42441203234113.

It is a super-3 number, since 3×31143230214424³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31143230214424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143230214427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42587467 + ... + 43312570.

It is an arithmetic number, because the mean of its divisors is an integer number (3649677864525).

Almost surely, 2^{31143230214424} is an apocalyptic number.

It is an amenable number.

31143230214424 is a deficient number, since it is larger than the sum of its proper divisors (27251615617976).

31143230214424 is a wasteful number, since it uses less digits than its factorization.

31143230214424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85945362 (or 85945358 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 31143230214424 its reverse (42441203234113), we get a palindrome (73584433448537).

The spelling of 31143230214424 in words is "thirty-one trillion, one hundred forty-three billion, two hundred thirty million, two hundred fourteen thousand, four hundred twenty-four".