13421402343 has 24 divisors (see below), whose sum is σ = 20562622080. Its totient is φ = 8411953680.

The previous prime is 13421402327. The next prime is 13421402363. The reversal of 13421402343 is 34320412431.

13421402343 is a `hidden beast` number, since 1 + 3 + 421 + 4 + 0 + 234 + 3 = 666.

It is not a de Polignac number, because 13421402343 - 2⁴ = 13421402327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421402303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277171 + ... + 321972.

It is an arithmetic number, because the mean of its divisors is an integer number (856775920).

Almost surely, 2^13421402343 is an apocalyptic number.

13421402343 is a deficient number, since it is larger than the sum of its proper divisors (7141219737).

13421402343 is a wasteful number, since it uses less digits than its factorization.

13421402343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599299 (or 599296 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13421402343 its reverse (34320412431), we get a palindrome (47741814774).

The spelling of 13421402343 in words is "thirteen billion, four hundred twenty-one million, four hundred two thousand, three hundred forty-three".