1330113202021 has 2 divisors, whose sum is σ = 1330113202022. Its totient is φ = 1330113202020.

The previous prime is 1330113202013. The next prime is 1330113202043. The reversal of 1330113202021 is 1202023110331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162431141921 + 167682060100 = 1078161^2 + 409490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330113202021 - 2³ = 1330113202013 is a prime.

It is a super-2 number, since 2×1330113202021² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1330113202021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330113202001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665056601010 + 665056601011.

It is an arithmetic number, because the mean of its divisors is an integer number (665056601011).

Almost surely, 2^{1330113202021} is an apocalyptic number.

It is an amenable number.

1330113202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330113202021 is an equidigital number, since it uses as much as digits as its factorization.

1330113202021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1330113202021 its reverse (1202023110331), we get a palindrome (2532136312352).

The spelling of 1330113202021 in words is "one trillion, three hundred thirty billion, one hundred thirteen million, two hundred two thousand, twenty-one".