1331213055133 has 16 divisors (see below), whose sum is σ = 1510602871680. Its totient is φ = 1162953249984.

The previous prime is 1331213055101. The next prime is 1331213055163. The reversal of 1331213055133 is 3315503121331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1331213055133 - 2⁵ = 1331213055101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331213055095 and 1331213055104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331213055163) 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, 2498566 + ... + 2984167.

It is an arithmetic number, because the mean of its divisors is an integer number (94412679480).

Almost surely, 2^{1331213055133} is an apocalyptic number.

1331213055133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1331213055133 is a deficient number, since it is larger than the sum of its proper divisors (179389816547).

1331213055133 is a wasteful number, since it uses less digits than its factorization.

1331213055133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483748.

The product of its (nonzero) digits is 12150, while the sum is 31.

Adding to 1331213055133 its reverse (3315503121331), we get a palindrome (4646716176464).

The spelling of 1331213055133 in words is "one trillion, three hundred thirty-one billion, two hundred thirteen million, fifty-five thousand, one hundred thirty-three".