1001100551005 has 8 divisors (see below), whose sum is σ = 1201781129400. Its totient is φ = 800573462016.

The previous prime is 1001100550993. The next prime is 1001100551021. The reversal of 1001100551005 is 5001550011001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 412691892921 + 588408658084 = 642411^2 + 767078^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1001100551005 - 2¹⁵ = 1001100518237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38358000 + ... + 38384089.

It is an arithmetic number, because the mean of its divisors is an integer number (150222641175).

Almost surely, 2^{1001100551005} is an apocalyptic number.

It is an amenable number.

1001100551005 is a deficient number, since it is larger than the sum of its proper divisors (200680578395).

1001100551005 is an equidigital number, since it uses as much as digits as its factorization.

1001100551005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76744703.

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 1001100551005 its reverse (5001550011001), we get a palindrome (6002650562006).

The spelling of 1001100551005 in words is "one trillion, one billion, one hundred million, five hundred fifty-one thousand, five".