31324424143 has 8 divisors (see below), whose sum is σ = 31582107648. Its totient is φ = 31066913304.

The previous prime is 31324424141. The next prime is 31324424149. The reversal of 31324424143 is 34142442313.

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

It is a cyclic number.

It is not a de Polignac number, because 31324424143 - 2¹ = 31324424141 is a prime.

It is a super-2 number, since 2×31324424143² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324424141) 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, 334680 + ... + 417922.

It is an arithmetic number, because the mean of its divisors is an integer number (3947763456).

Almost surely, 2^31324424143 is an apocalyptic number.

31324424143 is a deficient number, since it is larger than the sum of its proper divisors (257683505).

31324424143 is a wasteful number, since it uses less digits than its factorization.

31324424143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86333.

The product of its digits is 27648, while the sum is 31.

Adding to 31324424143 its reverse (34142442313), we get a palindrome (65466866456).

The spelling of 31324424143 in words is "thirty-one billion, three hundred twenty-four million, four hundred twenty-four thousand, one hundred forty-three".