11240110021 has 4 divisors (see below), whose sum is σ = 12845840032. Its totient is φ = 9634380012.

The previous prime is 11240109961. The next prime is 11240110061. The reversal of 11240110021 is 12001104211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12001104211 = 83 ⋅144591617.

It is a cyclic number.

It is not a de Polignac number, because 11240110021 - 2²¹ = 11238012869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11240109983 and 11240110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240110061) 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, 802864995 + ... + 802865008.

It is an arithmetic number, because the mean of its divisors is an integer number (3211460008).

Almost surely, 2^11240110021 is an apocalyptic number.

It is an amenable number.

11240110021 is a deficient number, since it is larger than the sum of its proper divisors (1605730011).

11240110021 is an equidigital number, since it uses as much as digits as its factorization.

11240110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605730010.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11240110021 its reverse (12001104211), we get a palindrome (23241214232).

The spelling of 11240110021 in words is "eleven billion, two hundred forty million, one hundred ten thousand, twenty-one".