123125550203423 has 2 divisors, whose sum is σ = 123125550203424. Its totient is φ = 123125550203422.

The previous prime is 123125550203353. The next prime is 123125550203441. The reversal of 123125550203423 is 324302055521321.

It is a strong prime.

It is an emirp because it is prime and its reverse (324302055521321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123125550203423 - 2¹⁸ = 123125549941279 is a prime.

It is a super-2 number, since 2×123125550203423² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123125550263423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562775101711 + 61562775101712.

It is an arithmetic number, because the mean of its divisors is an integer number (61562775101712).

Almost surely, 2^{123125550203423} is an apocalyptic number.

123125550203423 is a deficient number, since it is larger than the sum of its proper divisors (1).

123125550203423 is an equidigital number, since it uses as much as digits as its factorization.

123125550203423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 123125550203423 in words is "one hundred twenty-three trillion, one hundred twenty-five billion, five hundred fifty million, two hundred three thousand, four hundred twenty-three".