2135452125123 has 10 divisors (see below), whose sum is σ = 3189996384564. Its totient is φ = 1423634750028.

The previous prime is 2135452125097. The next prime is 2135452125173. The reversal of 2135452125123 is 3215212545312.

2135452125123 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 4 + 521 + 2 + 5 + 123 = 666.

It is not a de Polignac number, because 2135452125123 - 2²⁴ = 2135435347907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2135452125173) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 13181803161 + ... + 13181803322.

Almost surely, 2^{2135452125123} is an apocalyptic number.

2135452125123 is a deficient number, since it is larger than the sum of its proper divisors (1054544259441).

2135452125123 is an equidigital number, since it uses as much as digits as its factorization.

2135452125123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26363606495 (or 26363606486 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 2135452125123 in words is "two trillion, one hundred thirty-five billion, four hundred fifty-two million, one hundred twenty-five thousand, one hundred twenty-three".