1200323231101 has 4 divisors (see below), whose sum is σ = 1200334853952. Its totient is φ = 1200311608252.

The previous prime is 1200323231057. The next prime is 1200323231111. The reversal of 1200323231101 is 1011323230021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1200323231101 - 2¹⁹ = 1200322706813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200323231111) 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, 5655115 + ... + 5863528.

It is an arithmetic number, because the mean of its divisors is an integer number (300083713488).

Almost surely, 2^{1200323231101} is an apocalyptic number.

It is an amenable number.

1200323231101 is a deficient number, since it is larger than the sum of its proper divisors (11622851).

1200323231101 is a wasteful number, since it uses less digits than its factorization.

1200323231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11622850.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200323231101 its reverse (1011323230021), we get a palindrome (2211646461122).

The spelling of 1200323231101 in words is "one trillion, two hundred billion, three hundred twenty-three million, two hundred thirty-one thousand, one hundred one".