31040432223 has 8 divisors (see below), whose sum is σ = 41412531888. Its totient is φ = 20680977024.

The previous prime is 31040432219. The next prime is 31040432309. The reversal of 31040432223 is 32223404013.

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

It is not a de Polignac number, because 31040432223 - 2² = 31040432219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31040432193 and 31040432202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040432323) 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, 3155386 + ... + 3165207.

It is an arithmetic number, because the mean of its divisors is an integer number (5176566486).

Almost surely, 2^31040432223 is an apocalyptic number.

31040432223 is a deficient number, since it is larger than the sum of its proper divisors (10372099665).

31040432223 is a wasteful number, since it uses less digits than its factorization.

31040432223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322233.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31040432223 its reverse (32223404013), we get a palindrome (63263836236).

The spelling of 31040432223 in words is "thirty-one billion, forty million, four hundred thirty-two thousand, two hundred twenty-three".