1200103361 has 4 divisors (see below), whose sum is σ = 1252281792. Its totient is φ = 1147924932.

The previous prime is 1200103349. The next prime is 1200103369. The reversal of 1200103361 is 1633010021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1633010021 = 17 ⋅96059413.

It is a cyclic number.

It is not a de Polignac number, because 1200103361 - 2²⁶ = 1132994497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200103369) 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, 26089181 + ... + 26089226.

It is an arithmetic number, because the mean of its divisors is an integer number (313070448).

Almost surely, 2^1200103361 is an apocalyptic number.

It is an amenable number.

1200103361 is a deficient number, since it is larger than the sum of its proper divisors (52178431).

1200103361 is an equidigital number, since it uses as much as digits as its factorization.

1200103361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52178430.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1200103361 is about 34642.5080067826. The cubic root of 1200103361 is about 1062.6890787101.

Adding to 1200103361 its reverse (1633010021), we get a palindrome (2833113382).

The spelling of 1200103361 in words is "one billion, two hundred million, one hundred three thousand, three hundred sixty-one".