121434777223707 has 16 divisors (see below), whose sum is σ = 162057562692480. Its totient is φ = 80884262332992.

The previous prime is 121434777223703. The next prime is 121434777223787. The reversal of 121434777223707 is 707322777434121.

It is not a de Polignac number, because 121434777223707 - 2² = 121434777223703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121434777223703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65610144 + ... + 67435602.

It is an arithmetic number, because the mean of its divisors is an integer number (10128597668280).

Almost surely, 2^{121434777223707} is an apocalyptic number.

121434777223707 is a deficient number, since it is larger than the sum of its proper divisors (40622785468773).

121434777223707 is a wasteful number, since it uses less digits than its factorization.

121434777223707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845242.

The product of its (nonzero) digits is 19361664, while the sum is 57.

The spelling of 121434777223707 in words is "one hundred twenty-one trillion, four hundred thirty-four billion, seven hundred seventy-seven million, two hundred twenty-three thousand, seven hundred seven".