31043032423 has 4 divisors (see below), whose sum is σ = 33430958008. Its totient is φ = 28655106840.

The previous prime is 31043032379. The next prime is 31043032451. The reversal of 31043032423 is 32423034013.

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 31043032423 - 2¹³ = 31043024231 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 (31043032463) 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, 1193962773 + ... + 1193962798.

It is an arithmetic number, because the mean of its divisors is an integer number (8357739502).

Almost surely, 2^31043032423 is an apocalyptic number.

31043032423 is a deficient number, since it is larger than the sum of its proper divisors (2387925585).

31043032423 is a wasteful number, since it uses less digits than its factorization.

31043032423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387925584.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31043032423 its reverse (32423034013), we get a palindrome (63466066436).

The spelling of 31043032423 in words is "thirty-one billion, forty-three million, thirty-two thousand, four hundred twenty-three".