100101010111001 has 4 divisors (see below), whose sum is σ = 100101224949504. Its totient is φ = 100100795272500.

The previous prime is 100101010110979. The next prime is 100101010111007. The reversal of 100101010111001 is 100111010101001.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100101010111001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100101010111001.

It is not an unprimeable number, because it can be changed into a prime (100101010111007) 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, 106718825 + ... + 107652726.

It is an arithmetic number, because the mean of its divisors is an integer number (25025306237376).

Almost surely, 2^{100101010111001} is an apocalyptic number.

It is an amenable number.

100101010111001 is a deficient number, since it is larger than the sum of its proper divisors (214838503).

100101010111001 is an equidigital number, since it uses as much as digits as its factorization.

100101010111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214838502.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 100101010111001 its reverse (100111010101001), we get a palindrome (200212020212002).

The spelling of 100101010111001 in words is "one hundred trillion, one hundred one billion, ten million, one hundred eleven thousand, one".