11021330123 has 4 divisors (see below), whose sum is σ = 11202007728. Its totient is φ = 10840652520.

The previous prime is 11021330101. The next prime is 11021330137. The reversal of 11021330123 is 32103312011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32103312011 = 29 ⋅1107010759.

It is a cyclic number.

It is not a de Polignac number, because 11021330123 - 2⁶ = 11021330059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021335123) 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, 90338711 + ... + 90338832.

It is an arithmetic number, because the mean of its divisors is an integer number (2800501932).

Almost surely, 2^11021330123 is an apocalyptic number.

11021330123 is a deficient number, since it is larger than the sum of its proper divisors (180677605).

11021330123 is an equidigital number, since it uses as much as digits as its factorization.

11021330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180677604.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11021330123 its reverse (32103312011), we get a palindrome (43124642134).

The spelling of 11021330123 in words is "eleven billion, twenty-one million, three hundred thirty thousand, one hundred twenty-three".