13404142024121 has 8 divisors (see below), whose sum is σ = 13466515514760. Its totient is φ = 13341881633152.

The previous prime is 13404142024103. The next prime is 13404142024129. The reversal of 13404142024121 is 12142024140431.

It can be written as a sum of positive squares in 4 ways, for example, as 11364989440000 + 2039152584121 = 3371200^2 + 1427989^2 .

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-13404142024121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13404142024129) 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, 28037330 + ... + 28511403.

It is an arithmetic number, because the mean of its divisors is an integer number (1683314439345).

Almost surely, 2^{13404142024121} is an apocalyptic number.

It is an amenable number.

13404142024121 is a deficient number, since it is larger than the sum of its proper divisors (62373490639).

13404142024121 is an equidigital number, since it uses as much as digits as its factorization.

13404142024121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56549835.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 13404142024121 its reverse (12142024140431), we get a palindrome (25546166164552).

The spelling of 13404142024121 in words is "thirteen trillion, four hundred four billion, one hundred forty-two million, twenty-four thousand, one hundred twenty-one".