123026142451243 has 2 divisors, whose sum is σ = 123026142451244. Its totient is φ = 123026142451242.

The previous prime is 123026142451231. The next prime is 123026142451369. The reversal of 123026142451243 is 342154241620321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123026142451243 - 2¹⁷ = 123026142320171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123026142451196 and 123026142451205.

It is not a weakly prime, because it can be changed into another prime (123026142451943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61513071225621 + 61513071225622.

It is an arithmetic number, because the mean of its divisors is an integer number (61513071225622).

Almost surely, 2^{123026142451243} is an apocalyptic number.

123026142451243 is a deficient number, since it is larger than the sum of its proper divisors (1).

123026142451243 is an equidigital number, since it uses as much as digits as its factorization.

123026142451243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 123026142451243 in words is "one hundred twenty-three trillion, twenty-six billion, one hundred forty-two million, four hundred fifty-one thousand, two hundred forty-three".