1101115601 has 2 divisors, whose sum is σ = 1101115602. Its totient is φ = 1101115600.

The previous prime is 1101115583. The next prime is 1101115621. The reversal of 1101115601 is 1065111011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1059177025 + 41938576 = 32545^2 + 6476^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101115601 - 2⁶ = 1101115537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101115601.

It is not a weakly prime, because it can be changed into another prime (1101115621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550557800 + 550557801.

It is an arithmetic number, because the mean of its divisors is an integer number (550557801).

Almost surely, 2^1101115601 is an apocalyptic number.

It is an amenable number.

1101115601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101115601 is an equidigital number, since it uses as much as digits as its factorization.

1101115601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 17.

The square root of 1101115601 is about 33183.0619593792. The cubic root of 1101115601 is about 1032.6289711027.

Adding to 1101115601 its reverse (1065111011), we get a palindrome (2166226612).

The spelling of 1101115601 in words is "one billion, one hundred one million, one hundred fifteen thousand, six hundred one".