1003120132121 has 2 divisors, whose sum is σ = 1003120132122. Its totient is φ = 1003120132120.

The previous prime is 1003120132099. The next prime is 1003120132177. The reversal of 1003120132121 is 1212310213001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 954206617225 + 48913514896 = 976835^2 + 221164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003120132121 - 2²⁶ = 1003053023257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1003120132121.

It is not a weakly prime, because it can be changed into another prime (1003120138121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501560066060 + 501560066061.

It is an arithmetic number, because the mean of its divisors is an integer number (501560066061).

Almost surely, 2^{1003120132121} is an apocalyptic number.

It is an amenable number.

1003120132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003120132121 is an equidigital number, since it uses as much as digits as its factorization.

1003120132121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1003120132121 its reverse (1212310213001), we get a palindrome (2215430345122).

The spelling of 1003120132121 in words is "one trillion, three billion, one hundred twenty million, one hundred thirty-two thousand, one hundred twenty-one".