2012001210123 has 32 divisors (see below), whose sum is σ = 2727661547520. Its totient is φ = 1318940639520.

The previous prime is 2012001210097. The next prime is 2012001210169. The reversal of 2012001210123 is 3210121002102.

It is not a de Polignac number, because 2012001210123 - 2⁹ = 2012001209611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012001210173) 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, 264489586 + ... + 264497192.

It is an arithmetic number, because the mean of its divisors is an integer number (85239423360).

Almost surely, 2^{2012001210123} is an apocalyptic number.

2012001210123 is a deficient number, since it is larger than the sum of its proper divisors (715660337397).

2012001210123 is a wasteful number, since it uses less digits than its factorization.

2012001210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10807.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2012001210123 its reverse (3210121002102), we get a palindrome (5222122212225).

The spelling of 2012001210123 in words is "two trillion, twelve billion, one million, two hundred ten thousand, one hundred twenty-three".