101123204011 has 4 divisors (see below), whose sum is σ = 102068280792. Its totient is φ = 100178127232.

The previous prime is 101123203999. The next prime is 101123204059. The reversal of 101123204011 is 110402321101.

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-101123204011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101123204111) 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, 472538230 + ... + 472538443.

It is an arithmetic number, because the mean of its divisors is an integer number (25517070198).

Almost surely, 2^101123204011 is an apocalyptic number.

101123204011 is a deficient number, since it is larger than the sum of its proper divisors (945076781).

101123204011 is an equidigital number, since it uses as much as digits as its factorization.

101123204011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945076780.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101123204011 its reverse (110402321101), we get a palindrome (211525525112).

It can be divided in two parts, 10112 and 3204011, that added together give a palindrome (3214123).

The spelling of 101123204011 in words is "one hundred one billion, one hundred twenty-three million, two hundred four thousand, eleven".