103232231221 has 6 divisors (see below), whose sum is σ = 120086473110. Its totient is φ = 88484769576.

The previous prime is 103232231153. The next prime is 103232231227. The reversal of 103232231221 is 122132232301.

It can be written as a sum of positive squares in only one way, i.e., 81627347025 + 21604884196 = 285705^2 + 146986^2 .

It is not a de Polignac number, because 103232231221 - 2⁹ = 103232230709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103232231192 and 103232231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103232231227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1053390066 + ... + 1053390163.

It is an arithmetic number, because the mean of its divisors is an integer number (20014412185).

Almost surely, 2^103232231221 is an apocalyptic number.

It is an amenable number.

103232231221 is a deficient number, since it is larger than the sum of its proper divisors (16854241889).

103232231221 is an equidigital number, since it uses as much as digits as its factorization.

103232231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106780243 (or 2106780236 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 103232231221 its reverse (122132232301), we get a palindrome (225364463522).

The spelling of 103232231221 in words is "one hundred three billion, two hundred thirty-two million, two hundred thirty-one thousand, two hundred twenty-one".