123550154103247 has 2 divisors, whose sum is σ = 123550154103248. Its totient is φ = 123550154103246.

The previous prime is 123550154103169. The next prime is 123550154103263. The reversal of 123550154103247 is 742301451055321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123550154103247 - 2¹⁵ = 123550154070479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123550154103847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61775077051623 + 61775077051624.

It is an arithmetic number, because the mean of its divisors is an integer number (61775077051624).

Almost surely, 2^{123550154103247} is an apocalyptic number.

123550154103247 is a deficient number, since it is larger than the sum of its proper divisors (1).

123550154103247 is an equidigital number, since it uses as much as digits as its factorization.

123550154103247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 123550154103247 in words is "one hundred twenty-three trillion, five hundred fifty billion, one hundred fifty-four million, one hundred three thousand, two hundred forty-seven".