11101143021 has 8 divisors (see below), whose sum is σ = 15672201984. Its totient is φ = 6965423040.

The previous prime is 11101143019. The next prime is 11101143043. The reversal of 11101143021 is 12034110111.

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

It is not a de Polignac number, because 11101143021 - 2¹ = 11101143019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101143071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108834685 + ... + 108834786.

It is an arithmetic number, because the mean of its divisors is an integer number (1959025248).

Almost surely, 2^11101143021 is an apocalyptic number.

It is an amenable number.

11101143021 is a deficient number, since it is larger than the sum of its proper divisors (4571058963).

11101143021 is a wasteful number, since it uses less digits than its factorization.

11101143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217669491.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11101143021 its reverse (12034110111), we get a palindrome (23135253132).

The spelling of 11101143021 in words is "eleven billion, one hundred one million, one hundred forty-three thousand, twenty-one".