123241511521002 has 128 divisors (see below), whose sum is σ = 299053700974080. Its totient is φ = 33052984934400.

The previous prime is 123241511521001. The next prime is 123241511521003. The reversal of 123241511521002 is 200125115142321.

It is an interprime number because it is at equal distance from previous prime (123241511521001) and next prime (123241511521003).

It is not an unprimeable number, because it can be changed into a prime (123241511521001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2169372774 + ... + 2169429582.

It is an arithmetic number, because the mean of its divisors is an integer number (2336357038860).

Almost surely, 2^{123241511521002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123241511521002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149526850487040).

123241511521002 is an abundant number, since it is smaller than the sum of its proper divisors (175812189453078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123241511521002 is a wasteful number, since it uses less digits than its factorization.

123241511521002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64816.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 123241511521002 its reverse (200125115142321), we get a palindrome (323366626663323).

The spelling of 123241511521002 in words is "one hundred twenty-three trillion, two hundred forty-one billion, five hundred eleven million, five hundred twenty-one thousand, two".