121211414123 has 8 divisors (see below), whose sum is σ = 121370220288. Its totient is φ = 121052659624.

The previous prime is 121211414119. The next prime is 121211414153. The reversal of 121211414123 is 321414112121.

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 121211414123 - 2² = 121211414119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121211414113) 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, 7196690 + ... + 7213512.

It is an arithmetic number, because the mean of its divisors is an integer number (15171277536).

Almost surely, 2^121211414123 is an apocalyptic number.

121211414123 is a deficient number, since it is larger than the sum of its proper divisors (158806165).

121211414123 is an equidigital number, since it uses as much as digits as its factorization.

121211414123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25833.

The product of its digits is 384, while the sum is 23.

Adding to 121211414123 its reverse (321414112121), we get a palindrome (442625526244).

The spelling of 121211414123 in words is "one hundred twenty-one billion, two hundred eleven million, four hundred fourteen thousand, one hundred twenty-three".