11121520244135 has 16 divisors (see below), whose sum is σ = 15252426925056. Its totient is φ = 7626157158048.

The previous prime is 11121520244057. The next prime is 11121520244209. The reversal of 11121520244135 is 53144202512111.

It is a cyclic number.

It is not a de Polignac number, because 11121520244135 - 2¹⁴ = 11121520227751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14484914 + ... + 15233376.

It is an arithmetic number, because the mean of its divisors is an integer number (953276682816).

Almost surely, 2^{11121520244135} is an apocalyptic number.

11121520244135 is a deficient number, since it is larger than the sum of its proper divisors (4130906680921).

11121520244135 is an equidigital number, since it uses as much as digits as its factorization.

11121520244135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173022.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 11121520244135 its reverse (53144202512111), we get a palindrome (64265722756246).

The spelling of 11121520244135 in words is "eleven trillion, one hundred twenty-one billion, five hundred twenty million, two hundred forty-four thousand, one hundred thirty-five".