1172513113 has 8 divisors (see below), whose sum is σ = 1230255936. Its totient is φ = 1115334000.

The previous prime is 1172513107. The next prime is 1172513119. The reversal of 1172513113 is 3113152711.

It is an interprime number because it is at equal distance from previous prime (1172513107) and next prime (1172513119).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1172513113 - 2⁵ = 1172513081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172513119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136663 + ... + 144988.

It is an arithmetic number, because the mean of its divisors is an integer number (153781992).

Almost surely, 2^1172513113 is an apocalyptic number.

It is an amenable number.

1172513113 is a deficient number, since it is larger than the sum of its proper divisors (57742823).

1172513113 is a wasteful number, since it uses less digits than its factorization.

1172513113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281855.

The product of its digits is 630, while the sum is 25.

The square root of 1172513113 is about 34241.9788125628. The cubic root of 1172513113 is about 1054.4821588057.

Adding to 1172513113 its reverse (3113152711), we get a palindrome (4285665824).

The spelling of 1172513113 in words is "one billion, one hundred seventy-two million, five hundred thirteen thousand, one hundred thirteen".