1173424013 has 4 divisors (see below), whose sum is σ = 1213886940. Its totient is φ = 1132961088.

The previous prime is 1173424009. The next prime is 1173424019. The reversal of 1173424013 is 3104243711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1008507049 + 164916964 = 31757^2 + 12842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173424013 - 2² = 1173424009 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 (1173424019) 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, 20231420 + ... + 20231477.

It is an arithmetic number, because the mean of its divisors is an integer number (303471735).

Almost surely, 2^1173424013 is an apocalyptic number.

It is an amenable number.

1173424013 is a deficient number, since it is larger than the sum of its proper divisors (40462927).

1173424013 is an equidigital number, since it uses as much as digits as its factorization.

1173424013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40462926.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1173424013 is about 34255.2771554982. The cubic root of 1173424013 is about 1054.7551562267.

Adding to 1173424013 its reverse (3104243711), we get a palindrome (4277667724).

The spelling of 1173424013 in words is "one billion, one hundred seventy-three million, four hundred twenty-four thousand, thirteen".