2121011332103 has 2 divisors, whose sum is σ = 2121011332104. Its totient is φ = 2121011332102.

The previous prime is 2121011332093. The next prime is 2121011332129. The reversal of 2121011332103 is 3012331101212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121011332103 - 2¹⁴ = 2121011315719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121011322103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060505666051 + 1060505666052.

It is an arithmetic number, because the mean of its divisors is an integer number (1060505666052).

Almost surely, 2^{2121011332103} is an apocalyptic number.

2121011332103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121011332103 is an equidigital number, since it uses as much as digits as its factorization.

2121011332103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2121011332103 its reverse (3012331101212), we get a palindrome (5133342433315).

The spelling of 2121011332103 in words is "two trillion, one hundred twenty-one billion, eleven million, three hundred thirty-two thousand, one hundred three".