11010113212123 has 4 divisors (see below), whose sum is σ = 11041660814800. Its totient is φ = 10978565609448.

The previous prime is 11010113212073. The next prime is 11010113212151. The reversal of 11010113212123 is 32121231101011.

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

It is a cyclic number.

It is not a de Polignac number, because 11010113212123 - 2²⁵ = 11010079657691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11010113212123.

It is not an unprimeable number, because it can be changed into a prime (11010113212523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15773800815 + ... + 15773801512.

It is an arithmetic number, because the mean of its divisors is an integer number (2760415203700).

Almost surely, 2^{11010113212123} is an apocalyptic number.

11010113212123 is a deficient number, since it is larger than the sum of its proper divisors (31547602677).

11010113212123 is an equidigital number, since it uses as much as digits as its factorization.

11010113212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31547602676.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11010113212123 its reverse (32121231101011), we get a palindrome (43131344313134).

It can be divided in two parts, 1101011 and 3212123, that added together give a palindrome (4313134).

The spelling of 11010113212123 in words is "eleven trillion, ten billion, one hundred thirteen million, two hundred twelve thousand, one hundred twenty-three".