2011111002 has 12 divisors (see below), whose sum is σ = 4357407210. Its totient is φ = 670370328.

The previous prime is 2011111001. The next prime is 2011111043. The reversal of 2011111002 is 2001111102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1930811481 + 80299521 = 43941^2 + 8961^2 .

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 (2011111001) 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, 55864177 + ... + 55864212.

Almost surely, 2^2011111002 is an apocalyptic number.

2011111002 is an abundant number, since it is smaller than the sum of its proper divisors (2346296208).

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

2011111002 is a wasteful number, since it uses less digits than its factorization.

2011111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111728397 (or 111728394 counting only the distinct ones).

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

The square root of 2011111002 is about 44845.4122737209. The cubic root of 2011111002 is about 1262.2499067663.

Adding to 2011111002 its reverse (2001111102), we get a palindrome (4012222104).

It can be divided in two parts, 201111100 and 2, that added together give a palindrome (201111102).

The spelling of 2011111002 in words is "two billion, eleven million, one hundred eleven thousand, two".