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1311303132223 = 7296459621341
BaseRepresentation
bin10011000101001111110…
…000011110010000111111
311122100200222012001200221
4103011033300132100333
5132441022100212343
62442223201002211
7163511212500550
oct23051760362077
94570628161627
101311303132223
11466136483787
12192180923367
1396869a78466
1447678806327
152419b3e15ed
hex1314fc1e43f

1311303132223 has 8 divisors (see below), whose sum is σ = 1550309122080. Its totient is φ = 1085216385120.

The previous prime is 1311303132193. The next prime is 1311303132233. The reversal of 1311303132223 is 3222313031131.

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

It is not a de Polignac number, because 1311303132223 - 213 = 1311303124031 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 (1311303132233) 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, 3229810468 + ... + 3229810873.

It is an arithmetic number, because the mean of its divisors is an integer number (193788640260).

Almost surely, 21311303132223 is an apocalyptic number.

1311303132223 is a deficient number, since it is larger than the sum of its proper divisors (239005989857).

1311303132223 is an equidigital number, since it uses as much as digits as its factorization.

1311303132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459621377.

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

Adding to 1311303132223 its reverse (3222313031131), we get a palindrome (4533616163354).

The spelling of 1311303132223 in words is "one trillion, three hundred eleven billion, three hundred three million, one hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 7 29 203 6459621341 45217349387 187329018889 1311303132223