103212231121 has 4 divisors (see below), whose sum is σ = 109283538852. Its totient is φ = 97140923392.

The previous prime is 103212231119. The next prime is 103212231139. The reversal of 103212231121 is 121132212301.

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 31130720721 + 72081510400 = 176439^2 + 268480^2 .

It is a cyclic number.

It is not a de Polignac number, because 103212231121 - 2¹ = 103212231119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103212231821) 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 3 ways as a sum of consecutive naturals, for example, 3035653840 + ... + 3035653873.

It is an arithmetic number, because the mean of its divisors is an integer number (27320884713).

Almost surely, 2^103212231121 is an apocalyptic number.

It is an amenable number.

103212231121 is a deficient number, since it is larger than the sum of its proper divisors (6071307731).

103212231121 is an equidigital number, since it uses as much as digits as its factorization.

103212231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071307730.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 103212231121 its reverse (121132212301), we get a palindrome (224344443422).

The spelling of 103212231121 in words is "one hundred three billion, two hundred twelve million, two hundred thirty-one thousand, one hundred twenty-one".