11111002002 has 24 divisors (see below), whose sum is σ = 24363887184. Its totient is φ = 3659044344.

The previous prime is 11111001977. The next prime is 11111002003. The reversal of 11111002002 is 20020011111.

It is a happy number.

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 (11111002003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3717048 + ... + 3720035.

It is an arithmetic number, because the mean of its divisors is an integer number (1015161966).

Almost surely, 2^11111002002 is an apocalyptic number.

11111002002 is an abundant number, since it is smaller than the sum of its proper divisors (13252885182).

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

11111002002 is a wasteful number, since it uses less digits than its factorization.

11111002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7437174 (or 7437171 counting only the distinct ones).

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

Adding to 11111002002 its reverse (20020011111), we get a palindrome (31131013113).

The spelling of 11111002002 in words is "eleven billion, one hundred eleven million, two thousand, two".