11123320201031 has 8 divisors (see below), whose sum is σ = 11291700536064. Its totient is φ = 10955009296440.

The previous prime is 11123320201003. The next prime is 11123320201033. The reversal of 11123320201031 is 13010202332111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11123320201031 is a prime.

It is a super-2 number, since 2×11123320201031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11123320200994 and 11123320201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123320201033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17034725 + ... + 17675646.

It is an arithmetic number, because the mean of its divisors is an integer number (1411462567008).

Almost surely, 2^{11123320201031} is an apocalyptic number.

11123320201031 is a deficient number, since it is larger than the sum of its proper divisors (168380335033).

11123320201031 is an equidigital number, since it uses as much as digits as its factorization.

11123320201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34715221.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11123320201031 its reverse (13010202332111), we get a palindrome (24133522533142).

The spelling of 11123320201031 in words is "eleven trillion, one hundred twenty-three billion, three hundred twenty million, two hundred one thousand, thirty-one".