11023123120 has 40 divisors (see below), whose sum is σ = 25702261200. Its totient is φ = 4396604160.

The previous prime is 11023123117. The next prime is 11023123121. The reversal of 11023123120 is 2132132011.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11023123094 and 11023123103.

It is not an unprimeable number, because it can be changed into a prime (11023123121) 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, 169486 + ... + 225325.

It is an arithmetic number, because the mean of its divisors is an integer number (642556530).

Almost surely, 2^11023123120 is an apocalyptic number.

11023123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11023123120 is an abundant number, since it is smaller than the sum of its proper divisors (14679138080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11023123120 is a wasteful number, since it uses less digits than its factorization.

11023123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395173 (or 395167 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11023123120 its reverse (2132132011), we get a palindrome (13155255131).

The spelling of 11023123120 in words is "eleven billion, twenty-three million, one hundred twenty-three thousand, one hundred twenty".