1331331301021 has 8 divisors (see below), whose sum is σ = 1367106260960. Its totient is φ = 1295775148752.

The previous prime is 1331331300989. The next prime is 1331331301039. The reversal of 1331331301021 is 1201031331331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331331301021 - 2⁵ = 1331331300989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331331300983 and 1331331301001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331331301081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54689586 + ... + 54713923.

It is an arithmetic number, because the mean of its divisors is an integer number (170888282620).

Almost surely, 2^{1331331301021} is an apocalyptic number.

It is an amenable number.

1331331301021 is a deficient number, since it is larger than the sum of its proper divisors (35774959939).

1331331301021 is a wasteful number, since it uses less digits than its factorization.

1331331301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109403835.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1331331301021 its reverse (1201031331331), we get a palindrome (2532362632352).

The spelling of 1331331301021 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred one thousand, twenty-one".