990111001001002 has 8 divisors (see below), whose sum is σ = 1505511248097636. Its totient is φ = 488273918301792.

The previous prime is 990111001000951. The next prime is 990111001001011. The reversal of 990111001001002 is 200100100111099.

It can be written as a sum of positive squares in 2 ways, for example, as 913899515254441 + 76211485746561 = 30230771^2 + 8729919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390791099173 + ... + 3390791099464.

Almost surely, 2^{990111001001002} is an apocalyptic number.

990111001001002 is a deficient number, since it is larger than the sum of its proper divisors (515400247096634).

990111001001002 is a wasteful number, since it uses less digits than its factorization.

990111001001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781582198712.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 990111001001002 in words is "nine hundred ninety trillion, one hundred eleven billion, one million, one thousand, two".