11011010010101 has 2 divisors, whose sum is σ = 11011010010102. Its totient is φ = 11011010010100.

The previous prime is 11011010010097. The next prime is 11011010010107. The reversal of 11011010010101 is 10101001011011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10621902283876 + 389107726225 = 3259126^2 + 623785^2 .

It is an emirp because it is prime and its reverse (10101001011011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11011010010101 - 2² = 11011010010097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011010010107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505505005050 + 5505505005051.

It is an arithmetic number, because the mean of its divisors is an integer number (5505505005051).

Almost surely, 2^{11011010010101} is an apocalyptic number.

It is an amenable number.

11011010010101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011010010101 is an equidigital number, since it uses as much as digits as its factorization.

11011010010101 is an evil number, because the sum of its binary digits is even.

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

Adding to 11011010010101 its reverse (10101001011011), we get a palindrome (21112011021112).

The spelling of 11011010010101 in words is "eleven trillion, eleven billion, ten million, ten thousand, one hundred one".