2012123454001 has 4 divisors (see below), whose sum is σ = 2066505169012. Its totient is φ = 1957741738992.

The previous prime is 2012123453987. The next prime is 2012123454017. The reversal of 2012123454001 is 1004543212102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1810141522225 + 201981931776 = 1345415^2 + 449424^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012123454001 - 2²⁵ = 2012089899569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012123454031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27190857450 + ... + 27190857523.

It is an arithmetic number, because the mean of its divisors is an integer number (516626292253).

Almost surely, 2^{2012123454001} is an apocalyptic number.

It is an amenable number.

2012123454001 is a deficient number, since it is larger than the sum of its proper divisors (54381715011).

2012123454001 is an equidigital number, since it uses as much as digits as its factorization.

2012123454001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54381715010.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2012123454001 its reverse (1004543212102), we get a palindrome (3016666666103).

The spelling of 2012123454001 in words is "two trillion, twelve billion, one hundred twenty-three million, four hundred fifty-four thousand, one".