121235212103 has 8 divisors (see below), whose sum is σ = 127619235120. Its totient is φ = 114851511360.

The previous prime is 121235212093. The next prime is 121235212123. The reversal of 121235212103 is 301212532121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121235212103 - 2⁶ = 121235212039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121235212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286801 + ... + 1377797.

It is an arithmetic number, because the mean of its divisors is an integer number (15952404390).

Almost surely, 2^121235212103 is an apocalyptic number.

121235212103 is a deficient number, since it is larger than the sum of its proper divisors (6384023017).

121235212103 is an equidigital number, since it uses as much as digits as its factorization.

121235212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161137.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 121235212103 its reverse (301212532121), we get a palindrome (422447744224).

The spelling of 121235212103 in words is "one hundred twenty-one billion, two hundred thirty-five million, two hundred twelve thousand, one hundred three".