1100109601 has 2 divisors, whose sum is σ = 1100109602. Its totient is φ = 1100109600.

The previous prime is 1100109599. The next prime is 1100109643. The reversal of 1100109601 is 1069010011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901440576 + 198669025 = 30024^2 + 14095^2 .

It is an emirp because it is prime and its reverse (1069010011) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1096010011 and 1100106901.

It is a cyclic number.

It is not a de Polignac number, because 1100109601 - 2¹ = 1100109599 is a prime.

It is a super-2 number, since 2×1100109601² = 2420482268424758402, which contains 22 as substring.

Together with 1100109599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1100109691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550054800 + 550054801.

It is an arithmetic number, because the mean of its divisors is an integer number (550054801).

Almost surely, 2^1100109601 is an apocalyptic number.

It is an amenable number.

1100109601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100109601 is an equidigital number, since it uses as much as digits as its factorization.

1100109601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1100109601 is about 33167.9001596423. The cubic root of 1100109601 is about 1032.3143988429.

Adding to 1100109601 its reverse (1069010011), we get a palindrome (2169119612).

The spelling of 1100109601 in words is "one billion, one hundred million, one hundred nine thousand, six hundred one".