1123423143071 has 2 divisors, whose sum is σ = 1123423143072. Its totient is φ = 1123423143070.

The previous prime is 1123423143067. The next prime is 1123423143103. The reversal of 1123423143071 is 1703413243211.

It is an a-pointer prime, because the next prime (1123423143103) can be obtained adding 1123423143071 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123423143071 - 2² = 1123423143067 is a prime.

It is a super-2 number, since 2×1123423143071² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123423143971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561711571535 + 561711571536.

It is an arithmetic number, because the mean of its divisors is an integer number (561711571536).

Almost surely, 2^{1123423143071} is an apocalyptic number.

1123423143071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123423143071 is an equidigital number, since it uses as much as digits as its factorization.

1123423143071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 1123423143071 its reverse (1703413243211), we get a palindrome (2826836386282).

The spelling of 1123423143071 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-three million, one hundred forty-three thousand, seventy-one".