103233123131221 has 4 divisors (see below), whose sum is σ = 105751004183244. Its totient is φ = 100715242079200.

The previous prime is 103233123131219. The next prime is 103233123131231. The reversal of 103233123131221 is 122131321332301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2221175910321 + 101011947220900 = 1490361^2 + 10050470^2 .

It is a cyclic number.

It is not a de Polignac number, because 103233123131221 - 2¹ = 103233123131219 is a prime.

It is a super-2 number, since 2×103233123131221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103233123131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103233123131231) 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, 1258940525950 + ... + 1258940526031.

It is an arithmetic number, because the mean of its divisors is an integer number (26437751045811).

Almost surely, 2^{103233123131221} is an apocalyptic number.

It is an amenable number.

103233123131221 is a deficient number, since it is larger than the sum of its proper divisors (2517881052023).

103233123131221 is an equidigital number, since it uses as much as digits as its factorization.

103233123131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517881052022.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 103233123131221 its reverse (122131321332301), we get a palindrome (225364444463522).

The spelling of 103233123131221 in words is "one hundred three trillion, two hundred thirty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".