121355406020006 has 16 divisors (see below), whose sum is σ = 183014560336608. Its totient is φ = 60351399019200.

The previous prime is 121355406019999. The next prime is 121355406020059. The reversal of 121355406020006 is 600020604553121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211324055 + ... + 211897538.

It is an arithmetic number, because the mean of its divisors is an integer number (11438410021038).

Almost surely, 2^{121355406020006} is an apocalyptic number.

121355406020006 is a deficient number, since it is larger than the sum of its proper divisors (61659154316602).

121355406020006 is a wasteful number, since it uses less digits than its factorization.

121355406020006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423222367.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 121355406020006 in words is "one hundred twenty-one trillion, three hundred fifty-five billion, four hundred six million, twenty thousand, six".