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1310232121867 is a prime number
BaseRepresentation
bin10011000100001111111…
…010111001001000001011
311122020221022220002200201
4103010033322321020023
5132431323410344432
62441525021313031
7163442526164434
oct23041772711013
94566838802621
101310232121867
11465736969859
12191b22105777
1396728c07916
14475b649248b
1524137384ee7
hex1310feb920b

1310232121867 has 2 divisors, whose sum is σ = 1310232121868. Its totient is φ = 1310232121866.

The previous prime is 1310232121661. The next prime is 1310232121871. The reversal of 1310232121867 is 7681212320131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1310232121867 - 215 = 1310232089099 is a prime.

It is a super-2 number, since 2×13102321218672 (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1310232124867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655116060933 + 655116060934.

It is an arithmetic number, because the mean of its divisors is an integer number (655116060934).

Almost surely, 21310232121867 is an apocalyptic number.

1310232121867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310232121867 is an equidigital number, since it uses as much as digits as its factorization.

1310232121867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

Adding to 1310232121867 its reverse (7681212320131), we get a palindrome (8991444441998).

The spelling of 1310232121867 in words is "one trillion, three hundred ten billion, two hundred thirty-two million, one hundred twenty-one thousand, eight hundred sixty-seven".