120121101103 has 2 divisors, whose sum is σ = 120121101104. Its totient is φ = 120121101102.

The previous prime is 120121101059. The next prime is 120121101211. The reversal of 120121101103 is 301101121021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120121101103 - 2²⁹ = 119584230191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121101803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060550551 + 60060550552.

It is an arithmetic number, because the mean of its divisors is an integer number (60060550552).

Almost surely, 2^120121101103 is an apocalyptic number.

120121101103 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121101103 is an equidigital number, since it uses as much as digits as its factorization.

120121101103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 120121101103 its reverse (301101121021), we get a palindrome (421222222124).

The spelling of 120121101103 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred one thousand, one hundred three".