1213313301021 has 8 divisors (see below), whose sum is σ = 1618114054464. Its totient is φ = 808694040800.

The previous prime is 1213313301019. The next prime is 1213313301089. The reversal of 1213313301021 is 1201033133121.

It is a happy number.

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 1213313301021 - 2¹ = 1213313301019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213313301001) 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, 45357705 + ... + 45384446.

It is an arithmetic number, because the mean of its divisors is an integer number (202264256808).

Almost surely, 2^{1213313301021} is an apocalyptic number.

It is an amenable number.

1213313301021 is a deficient number, since it is larger than the sum of its proper divisors (404800753443).

1213313301021 is an equidigital number, since it uses as much as digits as its factorization.

1213313301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90746611.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1213313301021 its reverse (1201033133121), we get a palindrome (2414346434142).

The spelling of 1213313301021 in words is "one trillion, two hundred thirteen billion, three hundred thirteen million, three hundred one thousand, twenty-one".