11011312121255 has 8 divisors (see below), whose sum is σ = 13217860510992. Its totient is φ = 8806192386688.

The previous prime is 11011312121231. The next prime is 11011312121261. The reversal of 11011312121255 is 55212121311011.

11011312121255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011312121255 - 2¹⁸ = 11011311859111 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 7 ways as a sum of consecutive naturals, for example, 357146834 + ... + 357177663.

It is an arithmetic number, because the mean of its divisors is an integer number (1652232563874).

Almost surely, 2^{11011312121255} is an apocalyptic number.

11011312121255 is a deficient number, since it is larger than the sum of its proper divisors (2206548389737).

11011312121255 is an equidigital number, since it uses as much as digits as its factorization.

11011312121255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714327585.

The product of its (nonzero) digits is 600, while the sum is 26.

Adding to 11011312121255 its reverse (55212121311011), we get a palindrome (66223433432266).

The spelling of 11011312121255 in words is "eleven trillion, eleven billion, three hundred twelve million, one hundred twenty-one thousand, two hundred fifty-five".