11121375855541 has 16 divisors (see below), whose sum is σ = 12989785582080. Its totient is φ = 9323164477440.

The previous prime is 11121375855539. The next prime is 11121375855559. The reversal of 11121375855541 is 14555857312111.

It is a cyclic number.

It is not a de Polignac number, because 11121375855541 - 2¹ = 11121375855539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121375855511) 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, 11532030 + ... + 12459151.

It is an arithmetic number, because the mean of its divisors is an integer number (811861598880).

Almost surely, 2^{11121375855541} is an apocalyptic number.

It is an amenable number.

11121375855541 is a deficient number, since it is larger than the sum of its proper divisors (1868409726539).

11121375855541 is a wasteful number, since it uses less digits than its factorization.

11121375855541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23992644.

The product of its digits is 840000, while the sum is 49.

The spelling of 11121375855541 in words is "eleven trillion, one hundred twenty-one billion, three hundred seventy-five million, eight hundred fifty-five thousand, five hundred forty-one".