121030103103 has 64 divisors (see below), whose sum is σ = 202691220480. Its totient is φ = 62533306368.

The previous prime is 121030103087. The next prime is 121030103137. The reversal of 121030103103 is 301301030121.

It is not a de Polignac number, because 121030103103 - 2⁴ = 121030103087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030101103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9297063 + ... + 9310071.

It is an arithmetic number, because the mean of its divisors is an integer number (3167050320).

Almost surely, 2^121030103103 is an apocalyptic number.

121030103103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121030103103 is a deficient number, since it is larger than the sum of its proper divisors (81661117377).

121030103103 is a wasteful number, since it uses less digits than its factorization.

121030103103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 121030103103 its reverse (301301030121), we get a palindrome (422331133224).

The spelling of 121030103103 in words is "one hundred twenty-one billion, thirty million, one hundred three thousand, one hundred three".