1150205101 has 4 divisors (see below), whose sum is σ = 1150324092. Its totient is φ = 1150086112.

The previous prime is 1150205039. The next prime is 1150205129. The reversal of 1150205101 is 1015020511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1015020511 = 107 ⋅9486173.

It can be written as a sum of positive squares in 2 ways, for example, as 609596100 + 540609001 = 24690^2 + 23251^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150205101 - 2⁷ = 1150204973 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 (1150205131) 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, 43576 + ... + 64801.

It is an arithmetic number, because the mean of its divisors is an integer number (287581023).

Almost surely, 2^1150205101 is an apocalyptic number.

It is an amenable number.

1150205101 is a deficient number, since it is larger than the sum of its proper divisors (118991).

1150205101 is a wasteful number, since it uses less digits than its factorization.

1150205101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118990.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 1150205101 is about 33914.6738300695. The cubic root of 1150205101 is about 1047.7518341576.

Adding to 1150205101 its reverse (1015020511), we get a palindrome (2165225612).

It can be divided in two parts, 115020510 and 1, that added together give a palindrome (115020511).

The spelling of 1150205101 in words is "one billion, one hundred fifty million, two hundred five thousand, one hundred one".