12123521035 has 8 divisors (see below), whose sum is σ = 14903060256. Its totient is φ = 9462260160.

The previous prime is 12123521029. The next prime is 12123521057. The reversal of 12123521035 is 53012532121.

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

It is not a de Polignac number, because 12123521035 - 2³ = 12123521027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29569359 + ... + 29569768.

It is an arithmetic number, because the mean of its divisors is an integer number (1862882532).

Almost surely, 2^12123521035 is an apocalyptic number.

12123521035 is a deficient number, since it is larger than the sum of its proper divisors (2779539221).

12123521035 is an equidigital number, since it uses as much as digits as its factorization.

12123521035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59139173.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12123521035 in words is "twelve billion, one hundred twenty-three million, five hundred twenty-one thousand, thirty-five".