1150021115 has 4 divisors (see below), whose sum is σ = 1380025344. Its totient is φ = 920016888.

The previous prime is 1150021099. The next prime is 1150021139. The reversal of 1150021115 is 5111200511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5111200511 = 599 ⋅8532889.

It is a cyclic number.

It is not a de Polignac number, because 1150021115 - 2⁴ = 1150021099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1150021093 and 1150021102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115002107 + ... + 115002116.

It is an arithmetic number, because the mean of its divisors is an integer number (345006336).

Almost surely, 2^1150021115 is an apocalyptic number.

1150021115 is a deficient number, since it is larger than the sum of its proper divisors (230004229).

1150021115 is an equidigital number, since it uses as much as digits as its factorization.

1150021115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230004228.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 1150021115 is about 33911.9612378877. The cubic root of 1150021115 is about 1047.6959652961.

Adding to 1150021115 its reverse (5111200511), we get a palindrome (6261221626).

The spelling of 1150021115 in words is "one billion, one hundred fifty million, twenty-one thousand, one hundred fifteen".