2005212345123 has 32 divisors (see below), whose sum is σ = 2968950184704. Its totient is φ = 1196107466112.

The previous prime is 2005212345121. The next prime is 2005212345167. The reversal of 2005212345123 is 3215432125002.

It is not a de Polignac number, because 2005212345123 - 2¹ = 2005212345121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005212345121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5672461 + ... + 6015582.

It is an arithmetic number, because the mean of its divisors is an integer number (92779693272).

Almost surely, 2^{2005212345123} is an apocalyptic number.

2005212345123 is a deficient number, since it is larger than the sum of its proper divisors (963737839581).

2005212345123 is a wasteful number, since it uses less digits than its factorization.

2005212345123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11688195.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 2005212345123 in words is "two trillion, five billion, two hundred twelve million, three hundred forty-five thousand, one hundred twenty-three".