1020320113133 has 4 divisors (see below), whose sum is σ = 1055503565340. Its totient is φ = 985136660928.

The previous prime is 1020320113129. The next prime is 1020320113151. The reversal of 1020320113133 is 3313110230201.

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 662241143524 + 358078969609 = 813782^2 + 598397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020320113133 - 2² = 1020320113129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020320103133) 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, 17591726060 + ... + 17591726117.

It is an arithmetic number, because the mean of its divisors is an integer number (263875891335).

Almost surely, 2^{1020320113133} is an apocalyptic number.

It is an amenable number.

1020320113133 is a deficient number, since it is larger than the sum of its proper divisors (35183452207).

1020320113133 is an equidigital number, since it uses as much as digits as its factorization.

1020320113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35183452206.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1020320113133 its reverse (3313110230201), we get a palindrome (4333430343334).

The spelling of 1020320113133 in words is "one trillion, twenty billion, three hundred twenty million, one hundred thirteen thousand, one hundred thirty-three".