11020120023 has 32 divisors (see below), whose sum is σ = 17265346560. Its totient is φ = 6180179040.

The previous prime is 11020120009. The next prime is 11020120049. The reversal of 11020120023 is 32002102011.

It is not a de Polignac number, because 11020120023 - 2⁵ = 11020119991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020119990 and 11020120008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020120093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177411 + ... + 231332.

It is an arithmetic number, because the mean of its divisors is an integer number (539542080).

Almost surely, 2^11020120023 is an apocalyptic number.

11020120023 is a deficient number, since it is larger than the sum of its proper divisors (6245226537).

11020120023 is a wasteful number, since it uses less digits than its factorization.

11020120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408819.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11020120023 its reverse (32002102011), we get a palindrome (43022222034).

The spelling of 11020120023 in words is "eleven billion, twenty million, one hundred twenty thousand, twenty-three".