13531015434 has 16 divisors (see below), whose sum is σ = 27572635872. Its totient is φ = 4425237648.

The previous prime is 13531015429. The next prime is 13531015451. The reversal of 13531015434 is 43451013531.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21274864 + ... + 21275499.

It is an arithmetic number, because the mean of its divisors is an integer number (1723289742).

Almost surely, 2^13531015434 is an apocalyptic number.

13531015434 is an abundant number, since it is smaller than the sum of its proper divisors (14041620438).

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

13531015434 is a wasteful number, since it uses less digits than its factorization.

13531015434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42550421.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 13531015434 its reverse (43451013531), we get a palindrome (56982028965).

The spelling of 13531015434 in words is "thirteen billion, five hundred thirty-one million, fifteen thousand, four hundred thirty-four".