101010001011011 has 4 divisors (see below), whose sum is σ = 102010100031024. Its totient is φ = 100009901991000.

The previous prime is 101010001010981. The next prime is 101010001011107. The reversal of 101010001011011 is 110110100010101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101010001011011 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 101010001011011.

It is not an unprimeable number, because it can be changed into a prime (101010001011211) 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, 500049509855 + ... + 500049510056.

It is an arithmetic number, because the mean of its divisors is an integer number (25502525007756).

Almost surely, 2^{101010001011011} is an apocalyptic number.

101010001011011 is a deficient number, since it is larger than the sum of its proper divisors (1000099020013).

101010001011011 is a wasteful number, since it uses less digits than its factorization.

101010001011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000099020012.

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

Adding to 101010001011011 its reverse (110110100010101), we get a palindrome (211120101021112).

The spelling of 101010001011011 in words is "one hundred one trillion, ten billion, one million, eleven thousand, eleven".