31143143230 has 8 divisors (see below), whose sum is σ = 56057657832. Its totient is φ = 12457257288.

The previous prime is 31143143221. The next prime is 31143143231. The reversal of 31143143230 is 3234134113.

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

It is a junction number, because it is equal to n+sod(n) for n = 31143143195 and 31143143204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143143231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557157152 + ... + 1557157171.

It is an arithmetic number, because the mean of its divisors is an integer number (7007207229).

Almost surely, 2^31143143230 is an apocalyptic number.

31143143230 is a deficient number, since it is larger than the sum of its proper divisors (24914514602).

31143143230 is a wasteful number, since it uses less digits than its factorization.

31143143230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114314330.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31143143230 its reverse (3234134113), we get a palindrome (34377277343).

The spelling of 31143143230 in words is "thirty-one billion, one hundred forty-three million, one hundred forty-three thousand, two hundred thirty".