331331401324 has 72 divisors (see below), whose sum is σ = 735593884704. Its totient is φ = 127811904000.

The previous prime is 331331401321. The next prime is 331331401403. The reversal of 331331401324 is 423104133133.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 331331401292 and 331331401301.

It is not an unprimeable number, because it can be changed into a prime (331331401321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141949 + ... + 826324.

It is an arithmetic number, because the mean of its divisors is an integer number (10216581732).

Almost surely, 2^331331401324 is an apocalyptic number.

It is an amenable number.

331331401324 is an abundant number, since it is smaller than the sum of its proper divisors (404262483380).

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

331331401324 is a wasteful number, since it uses less digits than its factorization.

331331401324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968407 (or 968394 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 331331401324 its reverse (423104133133), we get a palindrome (754435534457).

It can be divided in two parts, 331331 and 401324, that added together give a triangular number (732655 = T₁₂₁₀).

The spelling of 331331401324 in words is "three hundred thirty-one billion, three hundred thirty-one million, four hundred one thousand, three hundred twenty-four".