331012323424 has 72 divisors (see below), whose sum is σ = 669026855448. Its totient is φ = 161209789440.

The previous prime is 331012323353. The next prime is 331012323451. The reversal of 331012323424 is 424323210133.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 331012323392 and 331012323401.

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, 14904072 + ... + 14926264.

It is an arithmetic number, because the mean of its divisors is an integer number (9292039659).

Almost surely, 2^331012323424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331012323424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334513427724).

331012323424 is an abundant number, since it is smaller than the sum of its proper divisors (338014532024).

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

331012323424 is a wasteful number, since it uses less digits than its factorization.

331012323424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22508 (or 22453 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 331012323424 its reverse (424323210133), we get a palindrome (755335533557).

The spelling of 331012323424 in words is "three hundred thirty-one billion, twelve million, three hundred twenty-three thousand, four hundred twenty-four".