1331304434340 has 48 divisors (see below), whose sum is σ = 3856192159680. Its totient is φ = 342772635520.

The previous prime is 1331304434249. The next prime is 1331304434353. The reversal of 1331304434340 is 434344031331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382557006 + ... + 382560485.

It is an arithmetic number, because the mean of its divisors is an integer number (80337336660).

Almost surely, 2^{1331304434340} is an apocalyptic number.

1331304434340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331304434340 is an abundant number, since it is smaller than the sum of its proper divisors (2524887725340).

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

1331304434340 is a wasteful number, since it uses less digits than its factorization.

1331304434340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765117532 (or 765117530 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 1331304434340 its reverse (434344031331), we get a palindrome (1765648465671).

The spelling of 1331304434340 in words is "one trillion, three hundred thirty-one billion, three hundred four million, four hundred thirty-four thousand, three hundred forty".