311201012 has 12 divisors (see below), whose sum is σ = 545485920. Its totient is φ = 155347896.

The previous prime is 311200999. The next prime is 311201021. The reversal of 311201012 is 210102113.

It is a junction number, because it is equal to n+sod(n) for n = 311200984 and 311201002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60368 + ... + 65319.

It is an arithmetic number, because the mean of its divisors is an integer number (45457160).

Almost surely, 2^311201012 is an apocalyptic number.

It is an amenable number.

311201012 is a deficient number, since it is larger than the sum of its proper divisors (234284908).

311201012 is a wasteful number, since it uses less digits than its factorization.

311201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126310 (or 126308 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 311201012 is about 17640.8903403428. The cubic root of 311201012 is about 677.6628327355.

Adding to 311201012 its reverse (210102113), we get a palindrome (521303125).

The spelling of 311201012 in words is "three hundred eleven million, two hundred one thousand, twelve".