11100123111021 has 16 divisors (see below), whose sum is σ = 16914908786304. Its totient is φ = 6342764189184.

The previous prime is 11100123111019. The next prime is 11100123111041. The reversal of 11100123111021 is 12011132100111.

11100123111021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11100123111021 - 2¹ = 11100123111019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100123111041) 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, 5966796 + ... + 7602821.

It is an arithmetic number, because the mean of its divisors is an integer number (1057181799144).

Almost surely, 2^{11100123111021} is an apocalyptic number.

It is an amenable number.

11100123111021 is a deficient number, since it is larger than the sum of its proper divisors (5814785675283).

11100123111021 is a wasteful number, since it uses less digits than its factorization.

11100123111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608580.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 11100123111021 its reverse (12011132100111), we get a palindrome (23111255211132).

The spelling of 11100123111021 in words is "eleven trillion, one hundred billion, one hundred twenty-three million, one hundred eleven thousand, twenty-one".