331001313012 has 36 divisors (see below), whose sum is σ = 836721230436. Its totient is φ = 110330676480.

The previous prime is 331001312981. The next prime is 331001313047. The reversal of 331001313012 is 210313100133.

It is a happy number.

331001313012 is a `hidden beast` number, since 331 + 0 + 0 + 1 + 31 + 301 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 260259144336 + 70742168676 = 510156^2 + 265974^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1430962 + ... + 1646102.

It is an arithmetic number, because the mean of its divisors is an integer number (23242256401).

Almost surely, 2^331001313012 is an apocalyptic number.

It is an amenable number.

331001313012 is an abundant number, since it is smaller than the sum of its proper divisors (505719917424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331001313012 is a wasteful number, since it uses less digits than its factorization.

331001313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257888 (or 257883 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 331001313012 its reverse (210313100133), we get a palindrome (541314413145).

The spelling of 331001313012 in words is "three hundred thirty-one billion, one million, three hundred thirteen thousand, twelve".