11140021023 has 4 divisors (see below), whose sum is σ = 14853361368. Its totient is φ = 7426680680.

The previous prime is 11140021007. The next prime is 11140021049. The reversal of 11140021023 is 32012004111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32012004111 = 3 ⋅10670668037.

It is a cyclic number.

It is not a de Polignac number, because 11140021023 - 2⁴ = 11140021007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11140020993 and 11140021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140021063) 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, 1856670168 + ... + 1856670173.

It is an arithmetic number, because the mean of its divisors is an integer number (3713340342).

Almost surely, 2^11140021023 is an apocalyptic number.

11140021023 is a deficient number, since it is larger than the sum of its proper divisors (3713340345).

11140021023 is an equidigital number, since it uses as much as digits as its factorization.

11140021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713340344.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11140021023 its reverse (32012004111), we get a palindrome (43152025134).

The spelling of 11140021023 in words is "eleven billion, one hundred forty million, twenty-one thousand, twenty-three".