1331120034243 has 16 divisors (see below), whose sum is σ = 1972215152160. Its totient is φ = 887329893888.

The previous prime is 1331120034161. The next prime is 1331120034253. The reversal of 1331120034243 is 3424300211331.

It is a happy number.

1331120034243 is a `hidden beast` number, since 1 + 3 + 31 + 1 + 200 + 3 + 424 + 3 = 666.

It is not a de Polignac number, because 1331120034243 - 2¹⁷ = 1331119903171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1331120034253) 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, 2025330 + ... + 2600807.

It is an arithmetic number, because the mean of its divisors is an integer number (123263447010).

Almost surely, 2^{1331120034243} is an apocalyptic number.

1331120034243 is a deficient number, since it is larger than the sum of its proper divisors (641095117917).

1331120034243 is a wasteful number, since it uses less digits than its factorization.

1331120034243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636803 (or 4636797 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1331120034243 its reverse (3424300211331), we get a palindrome (4755420245574).

The spelling of 1331120034243 in words is "one trillion, three hundred thirty-one billion, one hundred twenty million, thirty-four thousand, two hundred forty-three".