123012351445187 has 2 divisors, whose sum is σ = 123012351445188. Its totient is φ = 123012351445186.

The previous prime is 123012351445121. The next prime is 123012351445189. The reversal of 123012351445187 is 781544153210321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123012351445187 - 2²⁸ = 123012083009731 is a prime.

It is a super-3 number, since 3×123012351445187³ (a number of 43 digits) contains 333 as substring.

Together with 123012351445189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123012351445189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506175722593 + 61506175722594.

It is an arithmetic number, because the mean of its divisors is an integer number (61506175722594).

Almost surely, 2^{123012351445187} is an apocalyptic number.

123012351445187 is a deficient number, since it is larger than the sum of its proper divisors (1).

123012351445187 is an equidigital number, since it uses as much as digits as its factorization.

123012351445187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 123012351445187 in words is "one hundred twenty-three trillion, twelve billion, three hundred fifty-one million, four hundred forty-five thousand, one hundred eighty-seven".