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10123122131 is a prime number
BaseRepresentation
bin10010110110110001…
…01001010111010011
3222010111102212221022
421123120221113103
5131213004402011
64352301350055
7505601055413
oct113330512723
928114385838
1010123122131
114325269541
121b6626832b
13c543684c5
146c0652643
153e3acd8db
hex25b6295d3

10123122131 has 2 divisors, whose sum is σ = 10123122132. Its totient is φ = 10123122130.

The previous prime is 10123122103. The next prime is 10123122167. The reversal of 10123122131 is 13122132101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10123122131 - 26 = 10123122067 is a prime.

It is a super-2 number, since 2×101231221312 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10123122731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061561065 + 5061561066.

It is an arithmetic number, because the mean of its divisors is an integer number (5061561066).

Almost surely, 210123122131 is an apocalyptic number.

10123122131 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123122131 is an equidigital number, since it uses as much as digits as its factorization.

10123122131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10123122131 its reverse (13122132101), we get a palindrome (23245254232).

The spelling of 10123122131 in words is "ten billion, one hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-one".