1200120100003 has 8 divisors (see below), whose sum is σ = 1351454893056. Its totient is φ = 1055824134600.

The previous prime is 1200120099973. The next prime is 1200120100013. The reversal of 1200120100003 is 3000010210021.

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 1200120100003 - 2²¹ = 1200118002851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200120100013) 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 7 ways as a sum of consecutive naturals, for example, 1759706551 + ... + 1759707232.

It is an arithmetic number, because the mean of its divisors is an integer number (168931861632).

Almost surely, 2^{1200120100003} is an apocalyptic number.

1200120100003 is a deficient number, since it is larger than the sum of its proper divisors (151334793053).

1200120100003 is a wasteful number, since it uses less digits than its factorization.

1200120100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519413825.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1200120100003 its reverse (3000010210021), we get a palindrome (4200130310024).

The spelling of 1200120100003 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred thousand, three".