123512020545435 has 8 divisors (see below), whose sum is σ = 197619232872720. Its totient is φ = 65873077624224.

The previous prime is 123512020545367. The next prime is 123512020545451. The reversal of 123512020545435 is 534545020215321.

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

It is not a de Polignac number, because 123512020545435 - 2³⁰ = 123510946803611 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4117067351500 + ... + 4117067351529.

It is an arithmetic number, because the mean of its divisors is an integer number (24702404109090).

Almost surely, 2^{123512020545435} is an apocalyptic number.

123512020545435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123512020545435 is a deficient number, since it is larger than the sum of its proper divisors (74107212327285).

123512020545435 is an equidigital number, since it uses as much as digits as its factorization.

123512020545435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234134703037.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 123512020545435 in words is "one hundred twenty-three trillion, five hundred twelve billion, twenty million, five hundred forty-five thousand, four hundred thirty-five".