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123182373893 is a prime number
BaseRepresentation
bin111001010111000111…
…1011101110000000101
3102202221210100221210012
41302232033131300011
54004234141431033
6132331133440005
711620400621255
oct1625617356005
9382853327705
10123182373893
1148272269797
121ba59640005
13b8015c4147
145d67c63965
15330e571248
hex1cae3ddc05

123182373893 has 2 divisors, whose sum is σ = 123182373894. Its totient is φ = 123182373892.

The previous prime is 123182373883. The next prime is 123182373917. The reversal of 123182373893 is 398373281321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99835145089 + 23347228804 = 315967^2 + 152798^2 .

It is an emirp because it is prime and its reverse (398373281321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123182373893 - 218 = 123182111749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123182373883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61591186946 + 61591186947.

It is an arithmetic number, because the mean of its divisors is an integer number (61591186947).

Almost surely, 2123182373893 is an apocalyptic number.

It is an amenable number.

123182373893 is a deficient number, since it is larger than the sum of its proper divisors (1).

123182373893 is an equidigital number, since it uses as much as digits as its factorization.

123182373893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The spelling of 123182373893 in words is "one hundred twenty-three billion, one hundred eighty-two million, three hundred seventy-three thousand, eight hundred ninety-three".