123112143411031 has 2 divisors, whose sum is σ = 123112143411032. Its totient is φ = 123112143411030.

The previous prime is 123112143411029. The next prime is 123112143411053. The reversal of 123112143411031 is 130114341211321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123112143411031 - 2¹ = 123112143411029 is a prime.

It is a super-2 number, since 2×123112143411031² (a number of 29 digits) contains 22 as substring.

Together with 123112143411029, 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 (123112143481031) 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, 61556071705515 + 61556071705516.

It is an arithmetic number, because the mean of its divisors is an integer number (61556071705516).

Almost surely, 2^{123112143411031} is an apocalyptic number.

123112143411031 is a deficient number, since it is larger than the sum of its proper divisors (1).

123112143411031 is an equidigital number, since it uses as much as digits as its factorization.

123112143411031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 123112143411031 its reverse (130114341211321), we get a palindrome (253226484622352).

The spelling of 123112143411031 in words is "one hundred twenty-three trillion, one hundred twelve billion, one hundred forty-three million, four hundred eleven thousand, thirty-one".