1201323201 has 16 divisors (see below), whose sum is σ = 1725662400. Its totient is φ = 738982080.

The previous prime is 1201323197. The next prime is 1201323257. The reversal of 1201323201 is 1023231021.

1201323201 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1201323201 - 2² = 1201323197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201323401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133750 + ... + 142448.

It is an arithmetic number, because the mean of its divisors is an integer number (107853900).

Almost surely, 2^1201323201 is an apocalyptic number.

It is an amenable number.

1201323201 is a deficient number, since it is larger than the sum of its proper divisors (524339199).

1201323201 is a wasteful number, since it uses less digits than its factorization.

1201323201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1201323201 is about 34660.1096507210. The cubic root of 1201323201 is about 1063.0490120641.

Adding to 1201323201 its reverse (1023231021), we get a palindrome (2224554222).

The spelling of 1201323201 in words is "one billion, two hundred one million, three hundred twenty-three thousand, two hundred one".