123430012032030 has 128 divisors (see below), whose sum is σ = 325696049902080. Its totient is φ = 29688720322560.

The previous prime is 123430012032023. The next prime is 123430012032043. The reversal of 123430012032030 is 30230210034321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18923686 + ... + 24596054.

It is an arithmetic number, because the mean of its divisors is an integer number (2544500389860).

Almost surely, 2^{123430012032030} is an apocalyptic number.

123430012032030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123430012032030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162848024951040).

123430012032030 is an abundant number, since it is smaller than the sum of its proper divisors (202266037870050).

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

123430012032030 is a wasteful number, since it uses less digits than its factorization.

123430012032030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672906.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 123430012032030 its reverse (30230210034321), we get a palindrome (153660222066351).

The spelling of 123430012032030 in words is "one hundred twenty-three trillion, four hundred thirty billion, twelve million, thirty-two thousand, thirty".