1111111001002 has 4 divisors (see below), whose sum is σ = 1666666501506. Its totient is φ = 555555500500.

The previous prime is 1111111000957. The next prime is 1111111001027. The reversal of 1111111001002 is 2001001111111.

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., 1102791919321 + 8319081681 = 1050139^2 + 91209^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1111111001002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277777750249 + ... + 277777750252.

Almost surely, 2^{1111111001002} is an apocalyptic number.

1111111001002 is a deficient number, since it is larger than the sum of its proper divisors (555555500504).

1111111001002 is an equidigital number, since it uses as much as digits as its factorization.

1111111001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555555500503.

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

Adding to 1111111001002 its reverse (2001001111111), we get a palindrome (3112112112113).

The spelling of 1111111001002 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one thousand, two".