10111120421 has 8 divisors (see below), whose sum is σ = 10306427040. Its totient is φ = 9915981712.

The previous prime is 10111120361. The next prime is 10111120423. The reversal of 10111120421 is 12402111101.

10111120421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10111120421 - 2¹⁰ = 10111119397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111120396 and 10111120405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111120423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83186 + ... + 164748.

It is an arithmetic number, because the mean of its divisors is an integer number (1288303380).

Almost surely, 2^10111120421 is an apocalyptic number.

It is an amenable number.

10111120421 is a deficient number, since it is larger than the sum of its proper divisors (195306619).

10111120421 is an equidigital number, since it uses as much as digits as its factorization.

10111120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83955.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10111120421 its reverse (12402111101), we get a palindrome (22513231522).

The spelling of 10111120421 in words is "ten billion, one hundred eleven million, one hundred twenty thousand, four hundred twenty-one".