331331055340 has 96 divisors (see below), whose sum is σ = 722551072320. Its totient is φ = 127531708416.

The previous prime is 331331055317. The next prime is 331331055347. The reversal of 331331055340 is 43550133133.

It is a super-4 number, since 4×331331055340⁴ (a number of 47 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (331331055347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67109352 + ... + 67114288.

It is an arithmetic number, because the mean of its divisors is an integer number (7526573670).

Almost surely, 2^331331055340 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 331331055340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361275536160).

331331055340 is an abundant number, since it is smaller than the sum of its proper divisors (391220016980).

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

331331055340 is a wasteful number, since it uses less digits than its factorization.

331331055340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6129 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 331331055340 its reverse (43550133133), we get a palindrome (374881188473).

The spelling of 331331055340 in words is "three hundred thirty-one billion, three hundred thirty-one million, fifty-five thousand, three hundred forty".