1200601313 has 4 divisors (see below), whose sum is σ = 1200684288. Its totient is φ = 1200518340.

The previous prime is 1200601309. The next prime is 1200601321. The reversal of 1200601313 is 3131060021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1200601313 - 2² = 1200601309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200601291 and 1200601300.

It is not an unprimeable number, because it can be changed into a prime (1200601513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13481 + ... + 50822.

It is an arithmetic number, because the mean of its divisors is an integer number (300171072).

Almost surely, 2^1200601313 is an apocalyptic number.

It is an amenable number.

1200601313 is a deficient number, since it is larger than the sum of its proper divisors (82975).

1200601313 is an equidigital number, since it uses as much as digits as its factorization.

1200601313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82974.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1200601313 is about 34649.6942699355. The cubic root of 1200601313 is about 1062.8360368800.

Adding to 1200601313 its reverse (3131060021), we get a palindrome (4331661334).

The spelling of 1200601313 in words is "one billion, two hundred million, six hundred one thousand, three hundred thirteen".