11056361011421 has 16 divisors (see below), whose sum is σ = 12076789158720. Its totient is φ = 10038486007680.

The previous prime is 11056361011309. The next prime is 11056361011427. The reversal of 11056361011421 is 12411016365011.

It is a cyclic number.

It is not a de Polignac number, because 11056361011421 - 2²² = 11056356817117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056361011427) 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, 101653550 + ... + 101762256.

It is an arithmetic number, because the mean of its divisors is an integer number (754799322420).

Almost surely, 2^{11056361011421} is an apocalyptic number.

11056361011421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11056361011421 is a deficient number, since it is larger than the sum of its proper divisors (1020428147299).

11056361011421 is a wasteful number, since it uses less digits than its factorization.

11056361011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120364.

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 11056361011421 its reverse (12411016365011), we get a palindrome (23467377376432).

The spelling of 11056361011421 in words is "eleven trillion, fifty-six billion, three hundred sixty-one million, eleven thousand, four hundred twenty-one".