1201012001003 has 8 divisors (see below), whose sum is σ = 1255447418880. Its totient is φ = 1147557401640.

The previous prime is 1201012000997. The next prime is 1201012001009. The reversal of 1201012001003 is 3001002101021.

It is an interprime number because it is at equal distance from previous prime (1201012000997) and next prime (1201012001009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201012001003 - 2⁴ = 1201012000987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201012001009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245202125 + ... + 245207022.

It is an arithmetic number, because the mean of its divisors is an integer number (156930927360).

Almost surely, 2^{1201012001003} is an apocalyptic number.

1201012001003 is a deficient number, since it is larger than the sum of its proper divisors (54435417877).

1201012001003 is an equidigital number, since it uses as much as digits as its factorization.

1201012001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490409257.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1201012001003 its reverse (3001002101021), we get a palindrome (4202014102024).

The spelling of 1201012001003 in words is "one trillion, two hundred one billion, twelve million, one thousand, three".