11323120020 has 24 divisors (see below), whose sum is σ = 31704736224. Its totient is φ = 3019498656.

The previous prime is 11323119991. The next prime is 11323120049. The reversal of 11323120020 is 2002132311.

It is an interprime number because it is at equal distance from previous prime (11323119991) and next prime (11323120049).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94359274 + ... + 94359393.

It is an arithmetic number, because the mean of its divisors is an integer number (1321030676).

Almost surely, 2^11323120020 is an apocalyptic number.

11323120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11323120020 is an abundant number, since it is smaller than the sum of its proper divisors (20381616204).

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

11323120020 is a wasteful number, since it uses less digits than its factorization.

11323120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188718679 (or 188718677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11323120020 its reverse (2002132311), we get a palindrome (13325252331).

The spelling of 11323120020 in words is "eleven billion, three hundred twenty-three million, one hundred twenty thousand, twenty".