101101001011 has 4 divisors (see below), whose sum is σ = 101234556592. Its totient is φ = 100967445432.

The previous prime is 101101000991. The next prime is 101101001033. The reversal of 101101001011 is 110100101101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101101001011 - 2¹¹ = 101100998963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101101000985 and 101101001003.

It is not an unprimeable number, because it can be changed into a prime (101101001041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66776655 + ... + 66778168.

It is an arithmetic number, because the mean of its divisors is an integer number (25308639148).

Almost surely, 2^101101001011 is an apocalyptic number.

101101001011 is a deficient number, since it is larger than the sum of its proper divisors (133555581).

101101001011 is an equidigital number, since it uses as much as digits as its factorization.

101101001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133555580.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 101101001011 its reverse (110100101101), we get a palindrome (211201102112).

The spelling of 101101001011 in words is "one hundred one billion, one hundred one million, one thousand, eleven".