1230012123001 has 4 divisors (see below), whose sum is σ = 1246861604212. Its totient is φ = 1213162641792.

The previous prime is 1230012122987. The next prime is 1230012123007. The reversal of 1230012123001 is 1003212100321.

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 226979827776 + 1003032295225 = 476424^2 + 1001515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230012123001 - 2³³ = 1221422188409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230012123007) 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 3 ways as a sum of consecutive naturals, for example, 8424740496 + ... + 8424740641.

It is an arithmetic number, because the mean of its divisors is an integer number (311715401053).

Almost surely, 2^{1230012123001} is an apocalyptic number.

It is an amenable number.

1230012123001 is a deficient number, since it is larger than the sum of its proper divisors (16849481211).

1230012123001 is an equidigital number, since it uses as much as digits as its factorization.

1230012123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16849481210.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1230012123001 its reverse (1003212100321), we get a palindrome (2233224223322).

The spelling of 1230012123001 in words is "one trillion, two hundred thirty billion, twelve million, one hundred twenty-three thousand, one".