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123101033231237 is a prime number
BaseRepresentation
bin11011111111010110110001…
…010110110111001110000101
3121010212100021122220020102212
4123333112301112313032011
5112113341404001344422
61113451500045113205
734633520234554565
oct3377266126671605
9533770248806385
10123101033231237
11362509450269a6
121198197ab58805
13538c4ba840129
14225819c304da5
15e37218b7b9e2
hex6ff5b15b7385

123101033231237 has 2 divisors, whose sum is σ = 123101033231238. Its totient is φ = 123101033231236.

The previous prime is 123101033231219. The next prime is 123101033231257. The reversal of 123101033231237 is 732132330101321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122888775841441 + 212257389796 = 11085521^2 + 460714^2 .

It is a cyclic number.

It is not a de Polignac number, because 123101033231237 - 214 = 123101033214853 is a prime.

It is a super-2 number, since 2×1231010332312372 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123101033231257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550516615618 + 61550516615619.

It is an arithmetic number, because the mean of its divisors is an integer number (61550516615619).

Almost surely, 2123101033231237 is an apocalyptic number.

It is an amenable number.

123101033231237 is a deficient number, since it is larger than the sum of its proper divisors (1).

123101033231237 is an equidigital number, since it uses as much as digits as its factorization.

123101033231237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

Adding to 123101033231237 its reverse (732132330101321), we get a palindrome (855233363332558).

The spelling of 123101033231237 in words is "one hundred twenty-three trillion, one hundred one billion, thirty-three million, two hundred thirty-one thousand, two hundred thirty-seven".