20101120223 has 24 divisors (see below), whose sum is σ = 21402860160. Its totient is φ = 18857136960.

The previous prime is 20101120211. The next prime is 20101120261. The reversal of 20101120223 is 32202110102.

It is a happy number.

It is not a de Polignac number, because 20101120223 - 2¹² = 20101116127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101120198 and 20101120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101120283) 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 23 ways as a sum of consecutive naturals, for example, 7462865 + ... + 7465557.

It is an arithmetic number, because the mean of its divisors is an integer number (891785840).

Almost surely, 2^20101120223 is an apocalyptic number.

20101120223 is a deficient number, since it is larger than the sum of its proper divisors (1301739937).

20101120223 is a wasteful number, since it uses less digits than its factorization.

20101120223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20101120223 its reverse (32202110102), we get a palindrome (52303230325).

The spelling of 20101120223 in words is "twenty billion, one hundred one million, one hundred twenty thousand, two hundred twenty-three".