1201323355 has 8 divisors (see below), whose sum is σ = 1517461200. Its totient is φ = 910476576.

The previous prime is 1201323323. The next prime is 1201323371. The reversal of 1201323355 is 5533231021.

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 1201323355 - 2⁵ = 1201323323 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6322660 + ... + 6322849.

It is an arithmetic number, because the mean of its divisors is an integer number (189682650).

Almost surely, 2^1201323355 is an apocalyptic number.

1201323355 is a deficient number, since it is larger than the sum of its proper divisors (316137845).

1201323355 is a wasteful number, since it uses less digits than its factorization.

1201323355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12645533.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1201323355 is about 34660.1118722949. Note that the first 3 decimals coincide. The cubic root of 1201323355 is about 1063.0490574889.

Adding to 1201323355 its reverse (5533231021), we get a palindrome (6734554376).

The spelling of 1201323355 in words is "one billion, two hundred one million, three hundred twenty-three thousand, three hundred fifty-five".