13122403401421 has 8 divisors (see below), whose sum is σ = 13257806375744. Its totient is φ = 12987002885760.

The previous prime is 13122403401403. The next prime is 13122403401431. The reversal of 13122403401421 is 12410430422131.

It is a happy number.

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 13122403401421 - 2¹¹ = 13122403399373 is a prime.

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 13122403401421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122403401431) 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, 11300176 + ... + 12407206.

It is an arithmetic number, because the mean of its divisors is an integer number (1657225796968).

Almost surely, 2^{13122403401421} is an apocalyptic number.

It is an amenable number.

13122403401421 is a deficient number, since it is larger than the sum of its proper divisors (135402974323).

13122403401421 is a wasteful number, since it uses less digits than its factorization.

13122403401421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229331.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 13122403401421 its reverse (12410430422131), we get a palindrome (25532833823552).

The spelling of 13122403401421 in words is "thirteen trillion, one hundred twenty-two billion, four hundred three million, four hundred one thousand, four hundred twenty-one".