123242502203145 has 64 divisors (see below), whose sum is σ = 235966475082240. Its totient is φ = 60669370116864.

The previous prime is 123242502203141. The next prime is 123242502203167. The reversal of 123242502203145 is 541302205242321.

123242502203145 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 4 + 2 + 502 + 2 + 0 + 3 + 145 = 666.

It is not a de Polignac number, because 123242502203145 - 2² = 123242502203141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123242502203141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25444167 + ... + 29898003.

It is an arithmetic number, because the mean of its divisors is an integer number (3686976173160).

Almost surely, 2^{123242502203145} is an apocalyptic number.

123242502203145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123242502203145 is a deficient number, since it is larger than the sum of its proper divisors (112723972879095).

123242502203145 is a wasteful number, since it uses less digits than its factorization.

123242502203145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469631 (or 4469625 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 123242502203145 its reverse (541302205242321), we get a palindrome (664544707445466).

The spelling of 123242502203145 in words is "one hundred twenty-three trillion, two hundred forty-two billion, five hundred two million, two hundred three thousand, one hundred forty-five".