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103121132291 is a prime number
BaseRepresentation
bin110000000001001111…
…1111001101100000011
3100212011200121021211222
41200002133321230003
53142143002213131
6115212335425255
710310303106362
oct1400237715403
9325150537758
10103121132291
113a808210a81
1217b9b08522b
139955326398
144dc37997d9
152a3825987b
hex18027f9b03

103121132291 has 2 divisors, whose sum is σ = 103121132292. Its totient is φ = 103121132290.

The previous prime is 103121132267. The next prime is 103121132299. The reversal of 103121132291 is 192231121301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103121132291 - 226 = 103054023427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103121132291.

It is not a weakly prime, because it can be changed into another prime (103121132299) 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 as a sum of consecutive naturals, namely, 51560566145 + 51560566146.

It is an arithmetic number, because the mean of its divisors is an integer number (51560566146).

Almost surely, 2103121132291 is an apocalyptic number.

103121132291 is a deficient number, since it is larger than the sum of its proper divisors (1).

103121132291 is an equidigital number, since it uses as much as digits as its factorization.

103121132291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

Adding to 103121132291 its reverse (192231121301), we get a palindrome (295352253592).

The spelling of 103121132291 in words is "one hundred three billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred ninety-one".