123030134321502 has 32 divisors (see below), whose sum is σ = 256172334511392. Its totient is φ = 39355067026944.

The previous prime is 123030134321483. The next prime is 123030134321509. The reversal of 123030134321502 is 205123431030321.

It is a self number, because there is not a number n which added to its sum of digits gives 123030134321502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030134321509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3795804303 + ... + 3795836714.

It is an arithmetic number, because the mean of its divisors is an integer number (8005385453481).

Almost surely, 2^{123030134321502} is an apocalyptic number.

123030134321502 is an abundant number, since it is smaller than the sum of its proper divisors (133142200189890).

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

123030134321502 is a wasteful number, since it uses less digits than its factorization.

123030134321502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591641132.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 123030134321502 its reverse (205123431030321), we get a palindrome (328153565351823).

The spelling of 123030134321502 in words is "one hundred twenty-three trillion, thirty billion, one hundred thirty-four million, three hundred twenty-one thousand, five hundred two".