31143330224 has 10 divisors (see below), whose sum is σ = 60340202340. Its totient is φ = 15571665104.

The previous prime is 31143330223. The next prime is 31143330311. The reversal of 31143330224 is 42203334113.

It is a super-2 number, since 2×31143330224² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31143330193 and 31143330202.

It is not an unprimeable number, because it can be changed into a prime (31143330221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973229054 + ... + 973229085.

It is an arithmetic number, because the mean of its divisors is an integer number (6034020234).

Almost surely, 2^31143330224 is an apocalyptic number.

It is an amenable number.

31143330224 is a deficient number, since it is larger than the sum of its proper divisors (29196872116).

31143330224 is a wasteful number, since it uses less digits than its factorization.

31143330224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946458147 (or 1946458141 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31143330224 its reverse (42203334113), we get a palindrome (73346664337).

The spelling of 31143330224 in words is "thirty-one billion, one hundred forty-three million, three hundred thirty thousand, two hundred twenty-four".