1011001010101 has 16 divisors (see below), whose sum is σ = 1127055600000. Its totient is φ = 901255154688.

The previous prime is 1011001010099. The next prime is 1011001010197. The reversal of 1011001010101 is 1010101001101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011001010101 - 2¹ = 1011001010099 is a prime.

It is a Duffinian number.

1011001010101 is a modest number, since divided by 1010101 gives 10110 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011001020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170525 + ... + 1841773.

It is an arithmetic number, because the mean of its divisors is an integer number (70440975000).

Almost surely, 2^{1011001010101} is an apocalyptic number.

It is an amenable number.

1011001010101 is a deficient number, since it is larger than the sum of its proper divisors (116054589899).

1011001010101 is a wasteful number, since it uses less digits than its factorization.

1011001010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675948.

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

Adding to 1011001010101 its reverse (1010101001101), we get a palindrome (2021102011202).

The spelling of 1011001010101 in words is "one trillion, eleven billion, one million, ten thousand, one hundred one".