331123523012 has 12 divisors (see below), whose sum is σ = 579517921836. Its totient is φ = 165546973920.

The previous prime is 331123522991. The next prime is 331123523053. The reversal of 331123523012 is 210325321133.

It can be written as a sum of positive squares in 2 ways, for example, as 5454708736 + 325668814276 = 73856^2 + 570674^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3646439 + ... + 3736142.

It is an arithmetic number, because the mean of its divisors is an integer number (48293160153).

Almost surely, 2^331123523012 is an apocalyptic number.

It is an amenable number.

331123523012 is a deficient number, since it is larger than the sum of its proper divisors (248394398824).

331123523012 is a wasteful number, since it uses less digits than its factorization.

331123523012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393798 (or 7393796 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 331123523012 its reverse (210325321133), we get a palindrome (541448844145).

The spelling of 331123523012 in words is "three hundred thirty-one billion, one hundred twenty-three million, five hundred twenty-three thousand, twelve".