1201334321 has 32 divisors (see below), whose sum is σ = 1401117696. Its totient is φ = 1019304000.

The previous prime is 1201334311. The next prime is 1201334333. The reversal of 1201334321 is 1234331021.

It is a de Polignac number, because none of the positive numbers 2^k-1201334321 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1201334293 and 1201334302.

It is not an unprimeable number, because it can be changed into a prime (1201334311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2220311 + ... + 2220851.

It is an arithmetic number, because the mean of its divisors is an integer number (43784928).

Almost surely, 2^1201334321 is an apocalyptic number.

1201334321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201334321 is a deficient number, since it is larger than the sum of its proper divisors (199783375).

1201334321 is a wasteful number, since it uses less digits than its factorization.

1201334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1201334321 is about 34660.2700653068. The cubic root of 1201334321 is about 1063.0522920775.

Adding to 1201334321 its reverse (1234331021), we get a palindrome (2435665342).

The spelling of 1201334321 in words is "one billion, two hundred one million, three hundred thirty-four thousand, three hundred twenty-one".