123502144389121 has 8 divisors (see below), whose sum is σ = 124916670910304. Its totient is φ = 122090501715840.

The previous prime is 123502144389119. The next prime is 123502144389133. The reversal of 123502144389121 is 121983441205321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123502144389121 - 2¹ = 123502144389119 is a prime.

It is a super-2 number, since 2×123502144389121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123502144384121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720875835 + ... + 721047136.

It is an arithmetic number, because the mean of its divisors is an integer number (15614583863788).

Almost surely, 2^{123502144389121} is an apocalyptic number.

It is an amenable number.

123502144389121 is a deficient number, since it is larger than the sum of its proper divisors (1414526521183).

123502144389121 is an equidigital number, since it uses as much as digits as its factorization.

123502144389121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441923951.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 123502144389121 in words is "one hundred twenty-three trillion, five hundred two billion, one hundred forty-four million, three hundred eighty-nine thousand, one hundred twenty-one".