31200213330231 has 32 divisors (see below), whose sum is σ = 46447245791232. Its totient is φ = 18465605393760.

The previous prime is 31200213330227. The next prime is 31200213330241. The reversal of 31200213330231 is 13203331200213.

It is not a de Polignac number, because 31200213330231 - 2² = 31200213330227 is a prime.

It is a super-2 number, since 2×31200213330231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200213330241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4488576 + ... + 9085578.

It is an arithmetic number, because the mean of its divisors is an integer number (1451476430976).

Almost surely, 2^{31200213330231} is an apocalyptic number.

31200213330231 is a deficient number, since it is larger than the sum of its proper divisors (15247032461001).

31200213330231 is a wasteful number, since it uses less digits than its factorization.

31200213330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601843.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31200213330231 its reverse (13203331200213), we get a palindrome (44403544530444).

The spelling of 31200213330231 in words is "thirty-one trillion, two hundred billion, two hundred thirteen million, three hundred thirty thousand, two hundred thirty-one".