231011104421 has 8 divisors (see below), whose sum is σ = 239887244184. Its totient is φ = 222289332480.

The previous prime is 231011104393. The next prime is 231011104427. The reversal of 231011104421 is 124401110132.

It can be written as a sum of positive squares in 4 ways, for example, as 28498504225 + 202512600196 = 168815^2 + 450014^2 .

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 231011104421 - 2²² = 231006910117 is a prime.

It is a super-2 number, since 2×231011104421² (a number of 24 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 = 231011104393 and 231011104402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011104427) 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, 38588906 + ... + 38594891.

It is an arithmetic number, because the mean of its divisors is an integer number (29985905523).

Almost surely, 2^231011104421 is an apocalyptic number.

It is an amenable number.

231011104421 is a deficient number, since it is larger than the sum of its proper divisors (8876139763).

231011104421 is an equidigital number, since it uses as much as digits as its factorization.

231011104421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77183911.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 231011104421 its reverse (124401110132), we get a palindrome (355412214553).

The spelling of 231011104421 in words is "two hundred thirty-one billion, eleven million, one hundred four thousand, four hundred twenty-one".