1117130251 has 4 divisors (see below), whose sum is σ = 1175926600. Its totient is φ = 1058333904.

The previous prime is 1117130207. The next prime is 1117130281. The reversal of 1117130251 is 1520317111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1520317111 = 307 ⋅4952173.

It is a cyclic number.

It is not a de Polignac number, because 1117130251 - 2⁷ = 1117130123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117130281) 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, 29398146 + ... + 29398183.

It is an arithmetic number, because the mean of its divisors is an integer number (293981650).

Almost surely, 2^1117130251 is an apocalyptic number.

1117130251 is a deficient number, since it is larger than the sum of its proper divisors (58796349).

1117130251 is an equidigital number, since it uses as much as digits as its factorization.

1117130251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58796348.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 1117130251 is about 33423.4984853471. The cubic root of 1117130251 is about 1037.6110882357.

Adding to 1117130251 its reverse (1520317111), we get a palindrome (2637447362).

The spelling of 1117130251 in words is "one billion, one hundred seventeen million, one hundred thirty thousand, two hundred fifty-one".