11021123020 has 24 divisors (see below), whose sum is σ = 23197827744. Its totient is φ = 4398264576.

The previous prime is 11021122969. The next prime is 11021123021. The reversal of 11021123020 is 2032112011.

It is not an unprimeable number, because it can be changed into a prime (11021123021) 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, 627664 + ... + 644983.

It is an arithmetic number, because the mean of its divisors is an integer number (966576156).

Almost surely, 2^11021123020 is an apocalyptic number.

11021123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021123020 is an abundant number, since it is smaller than the sum of its proper divisors (12176704724).

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

11021123020 is a wasteful number, since it uses less digits than its factorization.

11021123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273089 (or 1273087 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11021123020 its reverse (2032112011), we get a palindrome (13053235031).

The spelling of 11021123020 in words is "eleven billion, twenty-one million, one hundred twenty-three thousand, twenty".