31201200223 has 16 divisors (see below), whose sum is σ = 33671907360. Its totient is φ = 28801483776.

The previous prime is 31201200221. The next prime is 31201200241. The reversal of 31201200223 is 32200210213.

It is not a de Polignac number, because 31201200223 - 2¹ = 31201200221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31201200197 and 31201200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201200221) 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 15 ways as a sum of consecutive naturals, for example, 3867568 + ... + 3875626.

It is an arithmetic number, because the mean of its divisors is an integer number (2104494210).

Almost surely, 2^31201200223 is an apocalyptic number.

31201200223 is a deficient number, since it is larger than the sum of its proper divisors (2470707137).

31201200223 is a wasteful number, since it uses less digits than its factorization.

31201200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12426.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31201200223 its reverse (32200210213), we get a palindrome (63401410436).

The spelling of 31201200223 in words is "thirty-one billion, two hundred one million, two hundred thousand, two hundred twenty-three".