13421205213 has 16 divisors (see below), whose sum is σ = 19294114560. Its totient is φ = 8249500224.

The previous prime is 13421205209. The next prime is 13421205223. The reversal of 13421205213 is 31250212431.

It is not a de Polignac number, because 13421205213 - 2² = 13421205209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421205223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168453 + ... + 234986.

It is an arithmetic number, because the mean of its divisors is an integer number (1205882160).

Almost surely, 2^13421205213 is an apocalyptic number.

13421205213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13421205213 is a deficient number, since it is larger than the sum of its proper divisors (5872909347).

13421205213 is a wasteful number, since it uses less digits than its factorization.

13421205213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404308.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 13421205213 its reverse (31250212431), we get a palindrome (44671417644).

The spelling of 13421205213 in words is "thirteen billion, four hundred twenty-one million, two hundred five thousand, two hundred thirteen".