1203322112011 has 4 divisors (see below), whose sum is σ = 1203327815800. Its totient is φ = 1203316408224.

The previous prime is 1203322111967. The next prime is 1203322112023. The reversal of 1203322112011 is 1102112233021.

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 1203322112011 - 2¹¹ = 1203322109963 is a prime.

It is a super-2 number, since 2×1203322112011² (a number of 25 digits) contains 22 as substring.

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 1203322112011.

It is not an unprimeable number, because it can be changed into a prime (1203322112071) 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, 2522781 + ... + 2961598.

It is an arithmetic number, because the mean of its divisors is an integer number (300831953950).

Almost surely, 2^{1203322112011} is an apocalyptic number.

1203322112011 is a deficient number, since it is larger than the sum of its proper divisors (5703789).

1203322112011 is an equidigital number, since it uses as much as digits as its factorization.

1203322112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703788.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1203322112011 its reverse (1102112233021), we get a palindrome (2305434345032).

The spelling of 1203322112011 in words is "one trillion, two hundred three billion, three hundred twenty-two million, one hundred twelve thousand, eleven".