1201012313 has 4 divisors (see below), whose sum is σ = 1201249920. Its totient is φ = 1200774708.

The previous prime is 1201012301. The next prime is 1201012327. The reversal of 1201012313 is 3132101021.

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.

It is a cyclic number.

It is not a de Polignac number, because 1201012313 - 2⁴ = 1201012297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201015313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111053 + ... + 121386.

It is an arithmetic number, because the mean of its divisors is an integer number (300312480).

Almost surely, 2^1201012313 is an apocalyptic number.

It is an amenable number.

1201012313 is a deficient number, since it is larger than the sum of its proper divisors (237607).

1201012313 is an equidigital number, since it uses as much as digits as its factorization.

1201012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237606.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1201012313 is about 34655.6245507133. The cubic root of 1201012313 is about 1062.9573027184.

Adding to 1201012313 its reverse (3132101021), we get a palindrome (4333113334).

The spelling of 1201012313 in words is "one billion, two hundred one million, twelve thousand, three hundred thirteen".