11011120002 has 12 divisors (see below), whose sum is σ = 23857426710. Its totient is φ = 3670373328.

The previous prime is 11011119991. The next prime is 11011120009. The reversal of 11011120002 is 20002111011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6606275841 + 4404844161 = 81279^2 + 66369^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11011120009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305864427 + ... + 305864462.

Almost surely, 2^11011120002 is an apocalyptic number.

11011120002 is an abundant number, since it is smaller than the sum of its proper divisors (12846306708).

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

11011120002 is a wasteful number, since it uses less digits than its factorization.

11011120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611728897 (or 611728894 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11011120002 its reverse (20002111011), we get a palindrome (31013231013).

The spelling of 11011120002 in words is "eleven billion, eleven million, one hundred twenty thousand, two".