4013123221231 has 8 divisors (see below), whose sum is σ = 4124749211744. Its totient is φ = 3901663715040.

The previous prime is 4013123221181. The next prime is 4013123221253. The reversal of 4013123221231 is 1321223213104.

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

It is a cyclic number.

It is not a de Polignac number, because 4013123221231 - 2¹³ = 4013123213039 is a prime.

It is a super-2 number, since 2×4013123221231² (a number of 26 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 = 4013123221196 and 4013123221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013123221931) 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 7 ways as a sum of consecutive naturals, for example, 41572200 + ... + 41668621.

It is an arithmetic number, because the mean of its divisors is an integer number (515593651468).

Almost surely, 2^{4013123221231} is an apocalyptic number.

4013123221231 is a deficient number, since it is larger than the sum of its proper divisors (111625990513).

4013123221231 is a wasteful number, since it uses less digits than its factorization.

4013123221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83242161.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 4013123221231 its reverse (1321223213104), we get a palindrome (5334346434335).

The spelling of 4013123221231 in words is "four trillion, thirteen billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred thirty-one".