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1313312213023 = 2371804232831
BaseRepresentation
bin10011000111000111100…
…000100000100000011111
311122112212222121221102221
4103013013200200200133
5133004130411304043
62443154410330211
7163612046423146
oct23070740404037
94575788557387
101313312213023
11466a77562938
12192641729967
1396aca081b75
14477c958675d
15242679998ed
hex131c782081f

1313312213023 has 8 divisors (see below), whose sum is σ = 1389714333696. Its totient is φ = 1238518558200.

The previous prime is 1313312212987. The next prime is 1313312213063. The reversal of 1313312213023 is 3203122133131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1313312213023 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 (1313312213063) 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, 402114783 + ... + 402118048.

It is an arithmetic number, because the mean of its divisors is an integer number (173714291712).

Almost surely, 21313312213023 is an apocalyptic number.

1313312213023 is a deficient number, since it is larger than the sum of its proper divisors (76402120673).

1313312213023 is an equidigital number, since it uses as much as digits as its factorization.

1313312213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804232925.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1313312213023 its reverse (3203122133131), we get a palindrome (4516434346154).

The spelling of 1313312213023 in words is "one trillion, three hundred thirteen billion, three hundred twelve million, two hundred thirteen thousand, twenty-three".

Divisors: 1 23 71 1633 804232831 18497355113 57100531001 1313312213023