123123143071 has 2 divisors, whose sum is σ = 123123143072. Its totient is φ = 123123143070.

The previous prime is 123123143069. The next prime is 123123143107. The reversal of 123123143071 is 170341321321.

Together with next prime (123123143107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123123143071 - 2¹ = 123123143069 is a prime.

It is a super-2 number, since 2×123123143071² (a number of 23 digits) contains 22 as substring.

Together with 123123143069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123123143371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561571535 + 61561571536.

It is an arithmetic number, because the mean of its divisors is an integer number (61561571536).

Almost surely, 2^123123143071 is an apocalyptic number.

123123143071 is a deficient number, since it is larger than the sum of its proper divisors (1).

123123143071 is an equidigital number, since it uses as much as digits as its factorization.

123123143071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 123123143071 its reverse (170341321321), we get a palindrome (293464464392).

The spelling of 123123143071 in words is "one hundred twenty-three billion, one hundred twenty-three million, one hundred forty-three thousand, seventy-one".