13411040431421 has 8 divisors (see below), whose sum is σ = 13876752277080. Its totient is φ = 12945546064192.

The previous prime is 13411040431417. The next prime is 13411040431433. The reversal of 13411040431421 is 12413404011431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 123630295321 + 13287410136100 = 351611^2 + 3645190^2 .

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 13411040431421 - 2² = 13411040431417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13411040421421) 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, 54244130 + ... + 54490803.

It is an arithmetic number, because the mean of its divisors is an integer number (1734594034635).

Almost surely, 2^{13411040431421} is an apocalyptic number.

It is an amenable number.

13411040431421 is a deficient number, since it is larger than the sum of its proper divisors (465711845659).

13411040431421 is a wasteful number, since it uses less digits than its factorization.

13411040431421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108739215.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 13411040431421 its reverse (12413404011431), we get a palindrome (25824444442852).

The spelling of 13411040431421 in words is "thirteen trillion, four hundred eleven billion, forty million, four hundred thirty-one thousand, four hundred twenty-one".