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123230311073 is a prime number
BaseRepresentation
bin111001011000100011…
…0010101001010100001
3102210002010120102020022
41302301012111022201
54004333424423243
6132340005123225
711621522234642
oct1626106251241
9383063512208
10123230311073
11482973306a1
121ba716b9515
13b80b50963c
145d703816c9
15331388eb68
hex1cb11952a1

123230311073 has 2 divisors, whose sum is σ = 123230311074. Its totient is φ = 123230311072.

The previous prime is 123230311067. The next prime is 123230311103. The reversal of 123230311073 is 370113032321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75606851089 + 47623459984 = 274967^2 + 218228^2 .

It is a cyclic number.

It is not a de Polignac number, because 123230311073 - 214 = 123230294689 is a prime.

It is a super-2 number, since 2×1232303110732 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123230311573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615155536 + 61615155537.

It is an arithmetic number, because the mean of its divisors is an integer number (61615155537).

Almost surely, 2123230311073 is an apocalyptic number.

It is an amenable number.

123230311073 is a deficient number, since it is larger than the sum of its proper divisors (1).

123230311073 is an equidigital number, since it uses as much as digits as its factorization.

123230311073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

Adding to 123230311073 its reverse (370113032321), we get a palindrome (493343343394).

The spelling of 123230311073 in words is "one hundred twenty-three billion, two hundred thirty million, three hundred eleven thousand, seventy-three".