13341520421 has 8 divisors (see below), whose sum is σ = 13706064504. Its totient is φ = 12977184960.

The previous prime is 13341520403. The next prime is 13341520429. The reversal of 13341520421 is 12402514331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5994630625 + 7346889796 = 77425^2 + 85714^2 .

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 13341520421 - 2¹⁸ = 13341258277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13341520429) 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, 82151 + ... + 182843.

It is an arithmetic number, because the mean of its divisors is an integer number (1713258063).

Almost surely, 2^13341520421 is an apocalyptic number.

It is an amenable number.

13341520421 is a deficient number, since it is larger than the sum of its proper divisors (364544083).

13341520421 is a wasteful number, since it uses less digits than its factorization.

13341520421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104311.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 13341520421 in words is "thirteen billion, three hundred forty-one million, five hundred twenty thousand, four hundred twenty-one".