13211350421 has 8 divisors (see below), whose sum is σ = 13263883200. Its totient is φ = 13158905760.

The previous prime is 13211350409. The next prime is 13211350423. The reversal of 13211350421 is 12405311231.

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-13211350421 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 (13211350423) 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, 286961 + ... + 329801.

It is an arithmetic number, because the mean of its divisors is an integer number (1657985400).

Almost surely, 2^13211350421 is an apocalyptic number.

It is an amenable number.

13211350421 is a deficient number, since it is larger than the sum of its proper divisors (52532779).

13211350421 is an equidigital number, since it uses as much as digits as its factorization.

13211350421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44059.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13211350421 its reverse (12405311231), we get a palindrome (25616661652).

The spelling of 13211350421 in words is "thirteen billion, two hundred eleven million, three hundred fifty thousand, four hundred twenty-one".