1203111201 has 8 divisors (see below), whose sum is σ = 1606129504. Its totient is φ = 801083520.

The previous prime is 1203111181. The next prime is 1203111211. The reversal of 1203111201 is 1021113021.

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

It is not a de Polignac number, because 1203111201 - 2⁶ = 1203111137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244816 + ... + 249681.

It is an arithmetic number, because the mean of its divisors is an integer number (200766188).

Almost surely, 2^1203111201 is an apocalyptic number.

It is an amenable number.

1203111201 is a deficient number, since it is larger than the sum of its proper divisors (403018303).

1203111201 is an equidigital number, since it uses as much as digits as its factorization.

1203111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495311.

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

The square root of 1203111201 is about 34685.8934006319. The cubic root of 1203111201 is about 1063.5761500901.

Adding to 1203111201 its reverse (1021113021), we get a palindrome (2224224222).

It can be divided in two parts, 12031 and 11201, that added together give a palindrome (23232).

The spelling of 1203111201 in words is "one billion, two hundred three million, one hundred eleven thousand, two hundred one".