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105013550231 is a prime number
BaseRepresentation
bin110000111001101001…
…0111001110010010111
3101001001120112002020022
41201303102321302113
53210031432101411
6120124220455355
710405222310012
oct1416322716227
9331046462208
10105013550231
1140599458647
12184289aa55b
139b97403b05
145122c4c379
152ae946aedb
hex18734b9c97

105013550231 has 2 divisors, whose sum is σ = 105013550232. Its totient is φ = 105013550230.

The previous prime is 105013550137. The next prime is 105013550233. The reversal of 105013550231 is 132055310501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105013550231 is a prime.

It is a super-2 number, since 2×1050135502312 (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 105013550233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 105013550231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105013550233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52506775115 + 52506775116.

It is an arithmetic number, because the mean of its divisors is an integer number (52506775116).

Almost surely, 2105013550231 is an apocalyptic number.

105013550231 is a deficient number, since it is larger than the sum of its proper divisors (1).

105013550231 is an equidigital number, since it uses as much as digits as its factorization.

105013550231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 105013550231 its reverse (132055310501), we get a palindrome (237068860732).

The spelling of 105013550231 in words is "one hundred five billion, thirteen million, five hundred fifty thousand, two hundred thirty-one".