31241132143 has 8 divisors (see below), whose sum is σ = 33818621648. Its totient is φ = 28688546304.

The previous prime is 31241132137. The next prime is 31241132177. The reversal of 31241132143 is 34123114213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31241132143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241132113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6223305 + ... + 6228322.

It is an arithmetic number, because the mean of its divisors is an integer number (4227327706).

Almost surely, 2^31241132143 is an apocalyptic number.

31241132143 is a deficient number, since it is larger than the sum of its proper divisors (2577489505).

31241132143 is a wasteful number, since it uses less digits than its factorization.

31241132143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12451833.

The product of its digits is 1728, while the sum is 25.

Adding to 31241132143 its reverse (34123114213), we get a palindrome (65364246356).

The spelling of 31241132143 in words is "thirty-one billion, two hundred forty-one million, one hundred thirty-two thousand, one hundred forty-three".