1331133231233 has 4 divisors (see below), whose sum is σ = 1433528095188. Its totient is φ = 1228738367280.

The previous prime is 1331133231227. The next prime is 1331133231247. The reversal of 1331133231233 is 3321323311331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215526205504 + 1115607025729 = 464248^2 + 1056223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331133231233 - 2¹⁴ = 1331133214849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331133231196 and 1331133231205.

It is not an unprimeable number, because it can be changed into a prime (1331133251233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51197431958 + ... + 51197431983.

It is an arithmetic number, because the mean of its divisors is an integer number (358382023797).

Almost surely, 2^{1331133231233} is an apocalyptic number.

1331133231233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1331133231233 is a deficient number, since it is larger than the sum of its proper divisors (102394863955).

1331133231233 is a wasteful number, since it uses less digits than its factorization.

1331133231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102394863954.

The product of its digits is 8748, while the sum is 29.

Adding to 1331133231233 its reverse (3321323311331), we get a palindrome (4652456542564).

The spelling of 1331133231233 in words is "one trillion, three hundred thirty-one billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred thirty-three".