1200202211023 has 4 divisors (see below), whose sum is σ = 1200315160600. Its totient is φ = 1200089261448.

The previous prime is 1200202211011. The next prime is 1200202211027. The reversal of 1200202211023 is 3201122020021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200202211023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200202210988 and 1200202211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200202211027) 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, 56458848 + ... + 56480101.

It is an arithmetic number, because the mean of its divisors is an integer number (300078790150).

Almost surely, 2^{1200202211023} is an apocalyptic number.

1200202211023 is a deficient number, since it is larger than the sum of its proper divisors (112949577).

1200202211023 is a wasteful number, since it uses less digits than its factorization.

1200202211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112949576.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200202211023 its reverse (3201122020021), we get a palindrome (4401324231044).

The spelling of 1200202211023 in words is "one trillion, two hundred billion, two hundred two million, two hundred eleven thousand, twenty-three".