1201113311323 has 4 divisors (see below), whose sum is σ = 1208482104808. Its totient is φ = 1193744517840.

The previous prime is 1201113311269. The next prime is 1201113311347. The reversal of 1201113311323 is 3231133111021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201113311323 - 2⁹ = 1201113310811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201113311294 and 1201113311303.

It is not an unprimeable number, because it can be changed into a prime (1201113311623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684396498 + ... + 3684396823.

It is an arithmetic number, because the mean of its divisors is an integer number (302120526202).

Almost surely, 2^{1201113311323} is an apocalyptic number.

1201113311323 is a deficient number, since it is larger than the sum of its proper divisors (7368793485).

1201113311323 is an equidigital number, since it uses as much as digits as its factorization.

1201113311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368793484.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1201113311323 its reverse (3231133111021), we get a palindrome (4432246422344).

The spelling of 1201113311323 in words is "one trillion, two hundred one billion, one hundred thirteen million, three hundred eleven thousand, three hundred twenty-three".