123112431151 has 2 divisors, whose sum is σ = 123112431152. Its totient is φ = 123112431150.

The previous prime is 123112431119. The next prime is 123112431161. The reversal of 123112431151 is 151134211321.

It is a strong prime.

It is an emirp because it is prime and its reverse (151134211321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123112431151 - 2⁵ = 123112431119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123112431161) 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, 61556215575 + 61556215576.

It is an arithmetic number, because the mean of its divisors is an integer number (61556215576).

Almost surely, 2^123112431151 is an apocalyptic number.

123112431151 is a deficient number, since it is larger than the sum of its proper divisors (1).

123112431151 is an equidigital number, since it uses as much as digits as its factorization.

123112431151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

Adding to 123112431151 its reverse (151134211321), we get a palindrome (274246642472).

The spelling of 123112431151 in words is "one hundred twenty-three billion, one hundred twelve million, four hundred thirty-one thousand, one hundred fifty-one".