1331221130033 has 4 divisors (see below), whose sum is σ = 1362179761008. Its totient is φ = 1300262499060.

The previous prime is 1331221130023. The next prime is 1331221130039. The reversal of 1331221130033 is 3300311221331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1331221130033 - 2³⁰ = 1330147388209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331221129990 and 1331221130008.

It is not an unprimeable number, because it can be changed into a prime (1331221130039) 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, 15479315423 + ... + 15479315508.

It is an arithmetic number, because the mean of its divisors is an integer number (340544940252).

Almost surely, 2^{1331221130033} is an apocalyptic number.

It is an amenable number.

1331221130033 is a deficient number, since it is larger than the sum of its proper divisors (30958630975).

1331221130033 is an equidigital number, since it uses as much as digits as its factorization.

1331221130033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30958630974.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1331221130033 its reverse (3300311221331), we get a palindrome (4631532351364).

The spelling of 1331221130033 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-one million, one hundred thirty thousand, thirty-three".