121030111002103 has 2 divisors, whose sum is σ = 121030111002104. Its totient is φ = 121030111002102.

The previous prime is 121030111002079. The next prime is 121030111002133. The reversal of 121030111002103 is 301200111030121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121030111002103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121030111002133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515055501051 + 60515055501052.

It is an arithmetic number, because the mean of its divisors is an integer number (60515055501052).

Almost surely, 2^{121030111002103} is an apocalyptic number.

121030111002103 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030111002103 is an equidigital number, since it uses as much as digits as its factorization.

121030111002103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121030111002103 its reverse (301200111030121), we get a palindrome (422230222032224).

The spelling of 121030111002103 in words is "one hundred twenty-one trillion, thirty billion, one hundred eleven million, two thousand, one hundred three".