13131434543235 has 16 divisors (see below), whose sum is σ = 21688046730240. Its totient is φ = 6777514602720.

The previous prime is 13131434543191. The next prime is 13131434543237. The reversal of 13131434543235 is 53234543413131.

It is not a de Polignac number, because 13131434543235 - 2¹¹ = 13131434541187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13131434543237) 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, 14119821625 + ... + 14119822554.

It is an arithmetic number, because the mean of its divisors is an integer number (1355502920640).

Almost surely, 2^{13131434543235} is an apocalyptic number.

13131434543235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13131434543235 is a deficient number, since it is larger than the sum of its proper divisors (8556612187005).

13131434543235 is a wasteful number, since it uses less digits than its factorization.

13131434543235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28239644218.

The product of its digits is 777600, while the sum is 42.

Adding to 13131434543235 its reverse (53234543413131), we get a palindrome (66365977956366).

The spelling of 13131434543235 in words is "thirteen trillion, one hundred thirty-one billion, four hundred thirty-four million, five hundred forty-three thousand, two hundred thirty-five".