1116013251 has 4 divisors (see below), whose sum is σ = 1488017672. Its totient is φ = 744008832.

The previous prime is 1116013243. The next prime is 1116013253. The reversal of 1116013251 is 1523106111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1116013251 - 2³ = 1116013243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116013253) 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, 186002206 + ... + 186002211.

It is an arithmetic number, because the mean of its divisors is an integer number (372004418).

Almost surely, 2^1116013251 is an apocalyptic number.

1116013251 is a deficient number, since it is larger than the sum of its proper divisors (372004421).

1116013251 is an equidigital number, since it uses as much as digits as its factorization.

1116013251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372004420.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1116013251 is about 33406.7845055462. The cubic root of 1116013251 is about 1037.2651428721.

Adding to 1116013251 its reverse (1523106111), we get a palindrome (2639119362).

The spelling of 1116013251 in words is "one billion, one hundred sixteen million, thirteen thousand, two hundred fifty-one".