331145551132 has 72 divisors (see below), whose sum is σ = 659283181200. Its totient is φ = 145254869760.

The previous prime is 331145551063. The next prime is 331145551133. The reversal of 331145551132 is 231155541133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331145551133) 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 23 ways as a sum of consecutive naturals, for example, 33583219 + ... + 33593077.

It is an arithmetic number, because the mean of its divisors is an integer number (9156710850).

Almost surely, 2^331145551132 is an apocalyptic number.

It is an amenable number.

331145551132 is a deficient number, since it is larger than the sum of its proper divisors (328137630068).

331145551132 is a wasteful number, since it uses less digits than its factorization.

331145551132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12307 (or 12294 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

Subtracting from 331145551132 its reverse (231155541133), we obtain a palindrome (99990009999).

The spelling of 331145551132 in words is "three hundred thirty-one billion, one hundred forty-five million, five hundred fifty-one thousand, one hundred thirty-two".