13420434534 has 32 divisors (see below), whose sum is σ = 28986128640. Its totient is φ = 4117853472.

The previous prime is 13420434527. The next prime is 13420434541. The reversal of 13420434534 is 43543402431.

It is an interprime number because it is at equal distance from previous prime (13420434527) and next prime (13420434541).

It is a junction number, because it is equal to n+sod(n) for n = 13420434495 and 13420434504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211632 + ... + 267635.

It is an arithmetic number, because the mean of its divisors is an integer number (905816520).

Almost surely, 2^13420434534 is an apocalyptic number.

13420434534 is an abundant number, since it is smaller than the sum of its proper divisors (15565694106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13420434534 is a wasteful number, since it uses less digits than its factorization.

13420434534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479644.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 13420434534 its reverse (43543402431), we get a palindrome (56963836965).

The spelling of 13420434534 in words is "thirteen billion, four hundred twenty million, four hundred thirty-four thousand, five hundred thirty-four".