123345045232987 has 2 divisors, whose sum is σ = 123345045232988. Its totient is φ = 123345045232986.

The previous prime is 123345045232973. The next prime is 123345045233023. The reversal of 123345045232987 is 789232540543321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123345045232987 - 2⁷ = 123345045232859 is a prime.

It is a super-2 number, since 2×123345045232987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123345045233987) 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, 61672522616493 + 61672522616494.

It is an arithmetic number, because the mean of its divisors is an integer number (61672522616494).

Almost surely, 2^{123345045232987} is an apocalyptic number.

123345045232987 is a deficient number, since it is larger than the sum of its proper divisors (1).

123345045232987 is an equidigital number, since it uses as much as digits as its factorization.

123345045232987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 123345045232987 in words is "one hundred twenty-three trillion, three hundred forty-five billion, forty-five million, two hundred thirty-two thousand, nine hundred eighty-seven".