1100115101 has 4 divisors (see below), whose sum is σ = 1164827772. Its totient is φ = 1035402432.

The previous prime is 1100115097. The next prime is 1100115103. The reversal of 1100115101 is 1015110011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1015110011 = 103 ⋅9855437.

It can be written as a sum of positive squares in 2 ways, for example, as 906070201 + 194044900 = 30101^2 + 13930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100115101 - 2² = 1100115097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100115103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32356310 + ... + 32356343.

It is an arithmetic number, because the mean of its divisors is an integer number (291206943).

Almost surely, 2^1100115101 is an apocalyptic number.

It is an amenable number.

1100115101 is a deficient number, since it is larger than the sum of its proper divisors (64712671).

1100115101 is an equidigital number, since it uses as much as digits as its factorization.

1100115101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64712670.

The product of its (nonzero) digits is 5, while the sum is 11.

The square root of 1100115101 is about 33167.9830710280. The cubic root of 1100115101 is about 1032.3161191926.

Adding to 1100115101 its reverse (1015110011), we get a palindrome (2115225112).

The spelling of 1100115101 in words is "one billion, one hundred million, one hundred fifteen thousand, one hundred one".