13511112031434 has 16 divisors (see below), whose sum is σ = 27392391516672. Its totient is φ = 4442009434848.

The previous prime is 13511112031423. The next prime is 13511112031447. The reversal of 13511112031434 is 43413021111531.

It is a happy 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, 15423643434 + ... + 15423644309.

It is an arithmetic number, because the mean of its divisors is an integer number (1712024469792).

Almost surely, 2^{13511112031434} is an apocalyptic number.

13511112031434 is an abundant number, since it is smaller than the sum of its proper divisors (13881279485238).

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

13511112031434 is a wasteful number, since it uses less digits than its factorization.

13511112031434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30847287821.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 13511112031434 its reverse (43413021111531), we get a palindrome (56924133142965).

The spelling of 13511112031434 in words is "thirteen trillion, five hundred eleven billion, one hundred twelve million, thirty-one thousand, four hundred thirty-four".