1001111002 has 4 divisors (see below), whose sum is σ = 1501666506. Its totient is φ = 500555500.

The previous prime is 1001110991. The next prime is 1001111047. The reversal of 1001111002 is 2001111001.

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., 1001026321 + 84681 = 31639^2 + 291^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250277749 + ... + 250277752.

Almost surely, 2^1001111002 is an apocalyptic number.

1001111002 is a deficient number, since it is larger than the sum of its proper divisors (500555504).

1001111002 is an equidigital number, since it uses as much as digits as its factorization.

1001111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500555503.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1001111002 is about 31640.3382093175. The cubic root of 1001111002 is about 1000.3701969373.

Adding to 1001111002 its reverse (2001111001), we get a palindrome (3002222003).

Subtracting 1001111002 from its reverse (2001111001), we obtain a palindrome (999999999).

The spelling of 1001111002 in words is "one billion, one million, one hundred eleven thousand, two".