11201012123 has 8 divisors (see below), whose sum is σ = 12836040192. Its totient is φ = 9574704936.

The previous prime is 11201012083. The next prime is 11201012131. The reversal of 11201012123 is 32121010211.

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-11201012123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201012098 and 11201012107.

It is not an unprimeable number, because it can be changed into a prime (11201312123) 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, 2177465 + ... + 2182602.

It is an arithmetic number, because the mean of its divisors is an integer number (1604505024).

Almost surely, 2^11201012123 is an apocalyptic number.

11201012123 is a deficient number, since it is larger than the sum of its proper divisors (1635028069).

11201012123 is an equidigital number, since it uses as much as digits as its factorization.

11201012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360441.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11201012123 its reverse (32121010211), we get a palindrome (43322022334).

The spelling of 11201012123 in words is "eleven billion, two hundred one million, twelve thousand, one hundred twenty-three".