13402421131325 has 12 divisors (see below), whose sum is σ = 16891444863828. Its totient is φ = 10546167446400.

The previous prime is 13402421131259. The next prime is 13402421131331. The reversal of 13402421131325 is 52313112420431.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6382348321561 + 7020072809764 = 2526331^2 + 2649542^2 .

It is not a de Polignac number, because 13402421131325 - 2¹⁸ = 13402420869181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13402421131291 and 13402421131300.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4394234912 + ... + 4394237961.

It is an arithmetic number, because the mean of its divisors is an integer number (1407620405319).

Almost surely, 2^{13402421131325} is an apocalyptic number.

It is an amenable number.

13402421131325 is a deficient number, since it is larger than the sum of its proper divisors (3489023732503).

13402421131325 is an equidigital number, since it uses as much as digits as its factorization.

13402421131325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788472944 (or 8788472939 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 13402421131325 its reverse (52313112420431), we get a palindrome (65715533551756).

The spelling of 13402421131325 in words is "thirteen trillion, four hundred two billion, four hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-five".