11211405055534 has 4 divisors (see below), whose sum is σ = 16817107583304. Its totient is φ = 5605702527766.

The previous prime is 11211405055481. The next prime is 11211405055549. The reversal of 11211405055534 is 43555050411211.

11211405055534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 11211405055493 and 11211405055502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802851263882 + ... + 2802851263885.

It is an arithmetic number, because the mean of its divisors is an integer number (4204276895826).

Almost surely, 2^{11211405055534} is an apocalyptic number.

11211405055534 is a deficient number, since it is larger than the sum of its proper divisors (5605702527770).

11211405055534 is an equidigital number, since it uses as much as digits as its factorization.

11211405055534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605702527769.

The product of its (nonzero) digits is 60000, while the sum is 37.

Adding to 11211405055534 its reverse (43555050411211), we get a palindrome (54766455466745).

The spelling of 11211405055534 in words is "eleven trillion, two hundred eleven billion, four hundred five million, fifty-five thousand, five hundred thirty-four".