1201312201323 has 8 divisors (see below), whose sum is σ = 1724961109648. Its totient is φ = 739269046944.

The previous prime is 1201312201291. The next prime is 1201312201361. The reversal of 1201312201323 is 3231022131021.

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

It is not a de Polignac number, because 1201312201323 - 2⁵ = 1201312201291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201312201323.

It is not an unprimeable number, because it can be changed into a prime (1201312201823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15401438440 + ... + 15401438517.

It is an arithmetic number, because the mean of its divisors is an integer number (215620138706).

Almost surely, 2^{1201312201323} is an apocalyptic number.

1201312201323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201312201323 is a deficient number, since it is larger than the sum of its proper divisors (523648908325).

1201312201323 is a wasteful number, since it uses less digits than its factorization.

1201312201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30802876973.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1201312201323 its reverse (3231022131021), we get a palindrome (4432334332344).

The spelling of 1201312201323 in words is "one trillion, two hundred one billion, three hundred twelve million, two hundred one thousand, three hundred twenty-three".