11111020000002 has 48 divisors (see below), whose sum is σ = 25931760374520. Its totient is φ = 3417977972736.

The previous prime is 11111019999983. The next prime is 11111020000007. The reversal of 11111020000002 is 20000002011111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10874027261241 + 236992738761 = 3297579^2 + 486819^2 .

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 (11111020000007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4531813 + ... + 6539064.

Almost surely, 2^{11111020000002} is an apocalyptic number.

11111020000002 is an abundant number, since it is smaller than the sum of its proper divisors (14820740374518).

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

11111020000002 is a wasteful number, since it uses less digits than its factorization.

11111020000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11075187 (or 11075184 counting only the distinct ones).

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

Adding to 11111020000002 its reverse (20000002011111), we get a palindrome (31111022011113).

The spelling of 11111020000002 in words is "eleven trillion, one hundred eleven billion, twenty million, two", and thus it is an aban number.