331113540 has 96 divisors (see below), whose sum is σ = 955100160. Its totient is φ = 85657600.

The previous prime is 331113509. The next prime is 331113583. The reversal of 331113540 is 45311133.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691021 + ... + 691499.

It is an arithmetic number, because the mean of its divisors is an integer number (9948960).

Almost surely, 2^331113540 is an apocalyptic number.

331113540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331113540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477550080).

331113540 is an abundant number, since it is smaller than the sum of its proper divisors (623986620).

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

331113540 is a wasteful number, since it uses less digits than its factorization.

331113540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 331113540 is about 18196.5254925219. The cubic root of 331113540 is about 691.8187263944.

Adding to 331113540 its reverse (45311133), we get a palindrome (376424673).

The spelling of 331113540 in words is "three hundred thirty-one million, one hundred thirteen thousand, five hundred forty".