13421304121 has 8 divisors (see below), whose sum is σ = 13793449824. Its totient is φ = 13051291680.

The previous prime is 13421304101. The next prime is 13421304133. The reversal of 13421304121 is 12140312431.

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 13421304121 - 2¹³ = 13421295929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13421304092 and 13421304101.

It is not an unprimeable number, because it can be changed into a prime (13421304101) 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, 520555 + ... + 545728.

It is an arithmetic number, because the mean of its divisors is an integer number (1724181228).

Almost surely, 2^13421304121 is an apocalyptic number.

It is an amenable number.

13421304121 is a deficient number, since it is larger than the sum of its proper divisors (372145703).

13421304121 is a wasteful number, since it uses less digits than its factorization.

13421304121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066631.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13421304121 its reverse (12140312431), we get a palindrome (25561616552).

The spelling of 13421304121 in words is "thirteen billion, four hundred twenty-one million, three hundred four thousand, one hundred twenty-one".