11101012123111 has 4 divisors (see below), whose sum is σ = 11101033054672. Its totient is φ = 11100991191552.

The previous prime is 11101012123063. The next prime is 11101012123139. The reversal of 11101012123111 is 11132121010111.

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 11101012123111 - 2¹¹ = 11101012121063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101012123141) 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, 9649011 + ... + 10738036.

It is an arithmetic number, because the mean of its divisors is an integer number (2775258263668).

Almost surely, 2^{11101012123111} is an apocalyptic number.

11101012123111 is a deficient number, since it is larger than the sum of its proper divisors (20931561).

11101012123111 is an equidigital number, since it uses as much as digits as its factorization.

11101012123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20931560.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 11101012123111 its reverse (11132121010111), we get a palindrome (22233133133222).

The spelling of 11101012123111 in words is "eleven trillion, one hundred one billion, twelve million, one hundred twenty-three thousand, one hundred eleven".