11200321123 has 4 divisors (see below), whose sum is σ = 11859163560. Its totient is φ = 10541478688.

The previous prime is 11200321117. The next prime is 11200321127. The reversal of 11200321123 is 32112300211.

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 11200321123 - 2¹³ = 11200312931 is a prime.

It is a super-2 number, since 2×11200321123² (a number of 21 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 = 11200321097 and 11200321106.

It is not an unprimeable number, because it can be changed into a prime (11200321127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329421193 + ... + 329421226.

It is an arithmetic number, because the mean of its divisors is an integer number (2964790890).

Almost surely, 2^11200321123 is an apocalyptic number.

11200321123 is a deficient number, since it is larger than the sum of its proper divisors (658842437).

11200321123 is an equidigital number, since it uses as much as digits as its factorization.

11200321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658842436.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11200321123 its reverse (32112300211), we get a palindrome (43312621334).

The spelling of 11200321123 in words is "eleven billion, two hundred million, three hundred twenty-one thousand, one hundred twenty-three".