111100000010101 has 2 divisors, whose sum is σ = 111100000010102. Its totient is φ = 111100000010100.

The previous prime is 111100000010017. The next prime is 111100000010107. The reversal of 111100000010101 is 101010000001111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93892030244100 + 17207969766001 = 9689790^2 + 4148249^2 .

It is an emirp because it is prime and its reverse (101010000001111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111100000010101 - 2²¹ = 111099997912949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111100000010107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550000005050 + 55550000005051.

It is an arithmetic number, because the mean of its divisors is an integer number (55550000005051).

Almost surely, 2^{111100000010101} is an apocalyptic number.

It is an amenable number.

111100000010101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100000010101 is an equidigital number, since it uses as much as digits as its factorization.

111100000010101 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 7.

Adding to 111100000010101 its reverse (101010000001111), we get a palindrome (212110000011212).

The spelling of 111100000010101 in words is "one hundred eleven trillion, one hundred billion, ten thousand, one hundred one".