11013121023 has 16 divisors (see below), whose sum is σ = 14732527200. Its totient is φ = 7317927936.

The previous prime is 11013121013. The next prime is 11013121079. The reversal of 11013121023 is 32012131011.

It is a happy number.

It is not a de Polignac number, because 11013121023 - 2⁵ = 11013120991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11013120993 and 11013121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013121013) 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, 2018403 + ... + 2023851.

It is an arithmetic number, because the mean of its divisors is an integer number (920782950).

Almost surely, 2^11013121023 is an apocalyptic number.

11013121023 is a deficient number, since it is larger than the sum of its proper divisors (3719406177).

11013121023 is a wasteful number, since it uses less digits than its factorization.

11013121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11013121023 its reverse (32012131011), we get a palindrome (43025252034).

The spelling of 11013121023 in words is "eleven billion, thirteen million, one hundred twenty-one thousand, twenty-three".