1201211323 has 8 divisors (see below), whose sum is σ = 1296780800. Its totient is φ = 1106094528.

The previous prime is 1201211303. The next prime is 1201211359. The reversal of 1201211323 is 3231121021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201211323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201211297 and 1201211306.

It is not an unprimeable number, because it can be changed into a prime (1201211303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107643 + ... + 118276.

It is an arithmetic number, because the mean of its divisors is an integer number (162097600).

Almost surely, 2^1201211323 is an apocalyptic number.

1201211323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201211323 is a deficient number, since it is larger than the sum of its proper divisors (95569477).

1201211323 is a wasteful number, since it uses less digits than its factorization.

1201211323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226341.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1201211323 is about 34658.4956828769. The cubic root of 1201211323 is about 1063.0160108176.

Adding to 1201211323 its reverse (3231121021), we get a palindrome (4432332344).

The spelling of 1201211323 in words is "one billion, two hundred one million, two hundred eleven thousand, three hundred twenty-three".