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1213233530527 is a prime number
BaseRepresentation
bin10001101001111010010…
…110101000011010011111
311021222120022221010002201
4101221322112220122133
5124334200240434102
62325203553032331
7153440025566464
oct21517226503237
94258508833081
101213233530527
11428590776487
121771715556a7
138a53b183945
1442a13cc366b
152185b8bb987
hex11a7a5a869f

1213233530527 has 2 divisors, whose sum is σ = 1213233530528. Its totient is φ = 1213233530526.

The previous prime is 1213233530519. The next prime is 1213233530543. The reversal of 1213233530527 is 7250353323121.

It is a weak prime.

It is an emirp because it is prime and its reverse (7250353323121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213233530527 - 23 = 1213233530519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213233530227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606616765263 + 606616765264.

It is an arithmetic number, because the mean of its divisors is an integer number (606616765264).

Almost surely, 21213233530527 is an apocalyptic number.

1213233530527 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213233530527 is an equidigital number, since it uses as much as digits as its factorization.

1213233530527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 37.

Adding to 1213233530527 its reverse (7250353323121), we get a palindrome (8463586853648).

The spelling of 1213233530527 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, five hundred thirty thousand, five hundred twenty-seven".