11020142320 has 80 divisors (see below), whose sum is σ = 28228059360. Its totient is φ = 3967616000.

The previous prime is 11020142257. The next prime is 11020142321. The reversal of 11020142320 is 2324102011.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 11020142294 and 11020142303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020142321) 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, 26886 + ... + 150874.

It is an arithmetic number, because the mean of its divisors is an integer number (352850742).

Almost surely, 2^11020142320 is an apocalyptic number.

11020142320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020142320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14114029680).

11020142320 is an abundant number, since it is smaller than the sum of its proper divisors (17207917040).

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

11020142320 is a wasteful number, since it uses less digits than its factorization.

11020142320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124114 (or 124108 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11020142320 its reverse (2324102011), we get a palindrome (13344244331).

The spelling of 11020142320 in words is "eleven billion, twenty million, one hundred forty-two thousand, three hundred twenty".