123220946589187 has 2 divisors, whose sum is σ = 123220946589188. Its totient is φ = 123220946589186.

The previous prime is 123220946589179. The next prime is 123220946589197. The reversal of 123220946589187 is 781985649022321.

It is a weak prime.

It is an emirp because it is prime and its reverse (781985649022321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123220946589187 - 2³ = 123220946589179 is a prime.

It is not a weakly prime, because it can be changed into another prime (123220946589137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61610473294593 + 61610473294594.

It is an arithmetic number, because the mean of its divisors is an integer number (61610473294594).

It is a 1-persistent number, because it is pandigital, but 2⋅123220946589187 = 246441893178374 is not.

Almost surely, 2^{123220946589187} is an apocalyptic number.

123220946589187 is a deficient number, since it is larger than the sum of its proper divisors (1).

123220946589187 is an equidigital number, since it uses as much as digits as its factorization.

123220946589187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 67.

The spelling of 123220946589187 in words is "one hundred twenty-three trillion, two hundred twenty billion, nine hundred forty-six million, five hundred eighty-nine thousand, one hundred eighty-seven".