31204401104231 has 8 divisors (see below), whose sum is σ = 31733384922240. Its totient is φ = 30675420475128.

The previous prime is 31204401104213. The next prime is 31204401104243. The reversal of 31204401104231 is 13240110440213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31204401104231 is a prime.

It is a super-2 number, since 2×31204401104231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31204401104231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204401103231) 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, 27206300 + ... + 28330046.

It is an arithmetic number, because the mean of its divisors is an integer number (3966673115280).

Almost surely, 2^{31204401104231} is an apocalyptic number.

31204401104231 is a deficient number, since it is larger than the sum of its proper divisors (528983818009).

31204401104231 is a wasteful number, since it uses less digits than its factorization.

31204401104231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594453.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31204401104231 its reverse (13240110440213), we get a palindrome (44444511544444).

The spelling of 31204401104231 in words is "thirty-one trillion, two hundred four billion, four hundred one million, one hundred four thousand, two hundred thirty-one".