1200442311323 has 4 divisors (see below), whose sum is σ = 1200500750400. Its totient is φ = 1200383872248.

The previous prime is 1200442311293. The next prime is 1200442311347. The reversal of 1200442311323 is 3231132440021.

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 1200442311323 - 2¹² = 1200442307227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200442311292 and 1200442311301.

It is not an unprimeable number, because it can be changed into a prime (1200442311223) 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, 29188715 + ... + 29229812.

It is an arithmetic number, because the mean of its divisors is an integer number (300125187600).

Almost surely, 2^{1200442311323} is an apocalyptic number.

1200442311323 is a deficient number, since it is larger than the sum of its proper divisors (58439077).

1200442311323 is an equidigital number, since it uses as much as digits as its factorization.

1200442311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58439076.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1200442311323 its reverse (3231132440021), we get a palindrome (4431574751344).

The spelling of 1200442311323 in words is "one trillion, two hundred billion, four hundred forty-two million, three hundred eleven thousand, three hundred twenty-three".