13111433513253 has 32 divisors (see below), whose sum is σ = 19647610560000. Its totient is φ = 8640536737536.

The previous prime is 13111433513251. The next prime is 13111433513257. The reversal of 13111433513253 is 35231533411131.

13111433513253 is a `hidden beast` number, since 1 + 3 + 1 + 11 + 43 + 351 + 3 + 253 = 666.

It is not a de Polignac number, because 13111433513253 - 2¹ = 13111433513251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111433513251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8747028 + ... + 10135746.

It is an arithmetic number, because the mean of its divisors is an integer number (613987830000).

Almost surely, 2^{13111433513253} is an apocalyptic number.

It is an amenable number.

13111433513253 is a deficient number, since it is larger than the sum of its proper divisors (6536177046747).

13111433513253 is a wasteful number, since it uses less digits than its factorization.

13111433513253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392746 (or 1392740 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

Adding to 13111433513253 its reverse (35231533411131), we get a palindrome (48342966924384).

The spelling of 13111433513253 in words is "thirteen trillion, one hundred eleven billion, four hundred thirty-three million, five hundred thirteen thousand, two hundred fifty-three".