11020042140 has 48 divisors (see below), whose sum is σ = 30861358080. Its totient is φ = 2938178880.

The previous prime is 11020042097. The next prime is 11020042153. The reversal of 11020042140 is 4124002011.

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 15 ways as a sum of consecutive naturals, for example, 461085 + ... + 484395.

It is an arithmetic number, because the mean of its divisors is an integer number (642944960).

Almost surely, 2^11020042140 is an apocalyptic number.

11020042140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020042140 is an abundant number, since it is smaller than the sum of its proper divisors (19841315940).

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

11020042140 is a wasteful number, since it uses less digits than its factorization.

11020042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31202 (or 31200 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11020042140 its reverse (4124002011), we get a palindrome (15144044151).

The spelling of 11020042140 in words is "eleven billion, twenty million, forty-two thousand, one hundred forty".