110100001001 has 4 divisors (see below), whose sum is σ = 110125856400. Its totient is φ = 110074145604.

The previous prime is 110100000979. The next prime is 110100001009. The reversal of 110100001001 is 100100001011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100100001011 = 23 ⋅4352173957.

It is a cyclic number.

It is not a de Polignac number, because 110100001001 - 2¹⁸ = 110099738857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (110100001009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12921311 + ... + 12929828.

It is an arithmetic number, because the mean of its divisors is an integer number (27531464100).

Almost surely, 2^110100001001 is an apocalyptic number.

It is an amenable number.

110100001001 is a deficient number, since it is larger than the sum of its proper divisors (25855399).

110100001001 is an equidigital number, since it uses as much as digits as its factorization.

110100001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25855398.

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 110100001001 its reverse (100100001011), we get a palindrome (210200002012).

The spelling of 110100001001 in words is "one hundred ten billion, one hundred million, one thousand, one".