11020356240 has 80 divisors (see below), whose sum is σ = 34515374208. Its totient is φ = 2908459008.

The previous prime is 11020356239. The next prime is 11020356251. The reversal of 11020356240 is 4265302011.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11020356240.

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, 213412 + ... + 259971.

Almost surely, 2^11020356240 is an apocalyptic number.

11020356240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020356240 is an abundant number, since it is smaller than the sum of its proper divisors (23495017968).

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

11020356240 is a wasteful number, since it uses less digits than its factorization.

11020356240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473496 (or 473490 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 11020356240 its reverse (4265302011), we get a palindrome (15285658251).

The spelling of 11020356240 in words is "eleven billion, twenty million, three hundred fifty-six thousand, two hundred forty".