31104422143 has 4 divisors (see below), whose sum is σ = 31406406928. Its totient is φ = 30802437360.

The previous prime is 31104422123. The next prime is 31104422161. The reversal of 31104422143 is 34122440113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31104422143 - 2⁹ = 31104421631 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 (31104422123) 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, 150992238 + ... + 150992443.

It is an arithmetic number, because the mean of its divisors is an integer number (7851601732).

Almost surely, 2^31104422143 is an apocalyptic number.

31104422143 is a deficient number, since it is larger than the sum of its proper divisors (301984785).

31104422143 is a wasteful number, since it uses less digits than its factorization.

31104422143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301984784.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31104422143 its reverse (34122440113), we get a palindrome (65226862256).

The spelling of 31104422143 in words is "thirty-one billion, one hundred four million, four hundred twenty-two thousand, one hundred forty-three".