11111001011002 has 4 divisors (see below), whose sum is σ = 16666501516506. Its totient is φ = 5555500505500.

The previous prime is 11111001010987. The next prime is 11111001011009. The reversal of 11111001011002 is 20011010011111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10681856792721 + 429144218281 = 3268311^2 + 655091^2 .

It is a super-2 number, since 2×11111001011002² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11111001011002.

It is not an unprimeable number, because it can be changed into a prime (11111001011009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777750252749 + ... + 2777750252752.

Almost surely, 2^{11111001011002} is an apocalyptic number.

11111001011002 is a deficient number, since it is larger than the sum of its proper divisors (5555500505504).

11111001011002 is an equidigital number, since it uses as much as digits as its factorization.

11111001011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555500505503.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11111001011002 its reverse (20011010011111), we get a palindrome (31122011022113).

The spelling of 11111001011002 in words is "eleven trillion, one hundred eleven billion, one million, eleven thousand, two".