31431110223 has 8 divisors (see below), whose sum is σ = 43353255600. Its totient is φ = 20231519168.

The previous prime is 31431110219. The next prime is 31431110237. The reversal of 31431110223 is 32201113413.

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

It is not a de Polignac number, because 31431110223 - 2² = 31431110219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31431110223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431110923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180638478 + ... + 180638651.

It is an arithmetic number, because the mean of its divisors is an integer number (5419156950).

Almost surely, 2^31431110223 is an apocalyptic number.

31431110223 is a deficient number, since it is larger than the sum of its proper divisors (11922145377).

31431110223 is a wasteful number, since it uses less digits than its factorization.

31431110223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361277161.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31431110223 its reverse (32201113413), we get a palindrome (63632223636).

The spelling of 31431110223 in words is "thirty-one billion, four hundred thirty-one million, one hundred ten thousand, two hundred twenty-three".