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1313212030021 = 2983545580403
BaseRepresentation
bin10011000111000001100…
…010010101110001000101
311122112122000010010012101
4103013001202111301011
5133003424234430041
62443140431152101
7163606422036343
oct23070142256105
94575560103171
101313212030021
11466a25a56971
12192614075631
1396ab23a5c98
14477ba148993
152425dcaab31
hex131c1895c45

1313212030021 has 8 divisors (see below), whose sum is σ = 1374862618080. Its totient is φ = 1252652602992.

The previous prime is 1313212030019. The next prime is 1313212030057. The reversal of 1313212030021 is 1200302123131.

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 1313212030021 - 21 = 1313212030019 is a prime.

It is a super-3 number, since 3×13132120300213 (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313212037021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272787795 + ... + 272792608.

It is an arithmetic number, because the mean of its divisors is an integer number (171857827260).

Almost surely, 21313212030021 is an apocalyptic number.

It is an amenable number.

1313212030021 is a deficient number, since it is larger than the sum of its proper divisors (61650588059).

1313212030021 is an equidigital number, since it uses as much as digits as its factorization.

1313212030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545580515.

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

Adding to 1313212030021 its reverse (1200302123131), we get a palindrome (2513514153152).

The spelling of 1313212030021 in words is "one trillion, three hundred thirteen billion, two hundred twelve million, thirty thousand, twenty-one".

Divisors: 1 29 83 2407 545580403 15821831687 45283173449 1313212030021