11311234534 has 16 divisors (see below), whose sum is σ = 17063392320. Its totient is φ = 5623528680.

The previous prime is 11311234511. The next prime is 11311234541. The reversal of 11311234534 is 43543211311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228357 + ... + 273439.

It is an arithmetic number, because the mean of its divisors is an integer number (1066462020).

Almost surely, 2^11311234534 is an apocalyptic number.

11311234534 is a deficient number, since it is larger than the sum of its proper divisors (5752157786).

11311234534 is a wasteful number, since it uses less digits than its factorization.

11311234534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45795.

The product of its digits is 4320, while the sum is 28.

Adding to 11311234534 its reverse (43543211311), we get a palindrome (54854445845).

The spelling of 11311234534 in words is "eleven billion, three hundred eleven million, two hundred thirty-four thousand, five hundred thirty-four".