31004040212231 has 16 divisors (see below), whose sum is σ = 32093297829600. Its totient is φ = 29928268800000.

The previous prime is 31004040212207. The next prime is 31004040212293. The reversal of 31004040212231 is 13221204040013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31004040212231 is a prime.

It is a super-2 number, since 2×31004040212231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31004040212197 and 31004040212206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004040211231) 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 15 ways as a sum of consecutive naturals, for example, 6812231 + ... + 10412231.

It is an arithmetic number, because the mean of its divisors is an integer number (2005831114350).

Almost surely, 2^{31004040212231} is an apocalyptic number.

31004040212231 is a deficient number, since it is larger than the sum of its proper divisors (1089257617369).

31004040212231 is a wasteful number, since it uses less digits than its factorization.

31004040212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601874.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31004040212231 its reverse (13221204040013), we get a palindrome (44225244252244).

The spelling of 31004040212231 in words is "thirty-one trillion, four billion, forty million, two hundred twelve thousand, two hundred thirty-one".