12420543234323 has 8 divisors (see below), whose sum is σ = 14684386090080. Its totient is φ = 10279070262720.

The previous prime is 12420543234293. The next prime is 12420543234383. The reversal of 12420543234323 is 32343234502421.

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

It is not a de Polignac number, because 12420543234323 - 2⁶ = 12420543234259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12420543234383) 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, 30592470818 + ... + 30592471223.

It is an arithmetic number, because the mean of its divisors is an integer number (1835548261260).

Almost surely, 2^{12420543234323} is an apocalyptic number.

12420543234323 is a deficient number, since it is larger than the sum of its proper divisors (2263842855757).

12420543234323 is an equidigital number, since it uses as much as digits as its factorization.

12420543234323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61184942077.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 12420543234323 its reverse (32343234502421), we get a palindrome (44763777736744).

The spelling of 12420543234323 in words is "twelve trillion, four hundred twenty billion, five hundred forty-three million, two hundred thirty-four thousand, three hundred twenty-three".