122103231121 has 2 divisors, whose sum is σ = 122103231122. Its totient is φ = 122103231120.

The previous prime is 122103231091. The next prime is 122103231143. The reversal of 122103231121 is 121132301221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97356480400 + 24746750721 = 312020^2 + 157311^2 .

It is an emirp because it is prime and its reverse (121132301221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122103231121 - 2¹³ = 122103222929 is a prime.

It is not a weakly prime, because it can be changed into another prime (122103231181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051615560 + 61051615561.

It is an arithmetic number, because the mean of its divisors is an integer number (61051615561).

Almost surely, 2^122103231121 is an apocalyptic number.

It is an amenable number.

122103231121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122103231121 is an equidigital number, since it uses as much as digits as its factorization.

122103231121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 122103231121 its reverse (121132301221), we get a palindrome (243235532342).

It can be divided in two parts, 1221032 and 31121, that added together give a triangular number (1252153 = T₁₅₈₂).

The spelling of 122103231121 in words is "one hundred twenty-two billion, one hundred three million, two hundred thirty-one thousand, one hundred twenty-one".