1200103123001 has 4 divisors (see below), whose sum is σ = 1270697424372. Its totient is φ = 1129508821632.

The previous prime is 1200103122991. The next prime is 1200103123049. The reversal of 1200103123001 is 1003213010021.

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 971259525625 + 228843597376 = 985525^2 + 478376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200103123001 - 2⁶ = 1200103122937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1200103123081) 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, 35297150660 + ... + 35297150693.

It is an arithmetic number, because the mean of its divisors is an integer number (317674356093).

Almost surely, 2^{1200103123001} is an apocalyptic number.

It is an amenable number.

1200103123001 is a deficient number, since it is larger than the sum of its proper divisors (70594301371).

1200103123001 is an equidigital number, since it uses as much as digits as its factorization.

1200103123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70594301370.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1200103123001 its reverse (1003213010021), we get a palindrome (2203316133022).

The spelling of 1200103123001 in words is "one trillion, two hundred billion, one hundred three million, one hundred twenty-three thousand, one".