1331314421252 has 48 divisors (see below), whose sum is σ = 2418221481984. Its totient is φ = 640632804000.

The previous prime is 1331314421251. The next prime is 1331314421287. The reversal of 1331314421252 is 2521244131331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1331314421251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130991123 + ... + 131001285.

It is an arithmetic number, because the mean of its divisors is an integer number (50379614208).

Almost surely, 2^{1331314421252} is an apocalyptic number.

It is an amenable number.

1331314421252 is a deficient number, since it is larger than the sum of its proper divisors (1086907060732).

1331314421252 is a wasteful number, since it uses less digits than its factorization.

1331314421252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15920 (or 15918 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

Adding to 1331314421252 its reverse (2521244131331), we get a palindrome (3852558552583).

The spelling of 1331314421252 in words is "one trillion, three hundred thirty-one billion, three hundred fourteen million, four hundred twenty-one thousand, two hundred fifty-two".