121755742414 has 16 divisors (see below), whose sum is σ = 193123195776. Its totient is φ = 57477139200.

The previous prime is 121755742379. The next prime is 121755742421. The reversal of 121755742414 is 414247557121.

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, 23946267 + ... + 23951350.

It is an arithmetic number, because the mean of its divisors is an integer number (12070199736).

Almost surely, 2^121755742414 is an apocalyptic number.

121755742414 is a deficient number, since it is larger than the sum of its proper divisors (71367453362).

121755742414 is a wasteful number, since it uses less digits than its factorization.

121755742414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47897691.

The product of its digits is 313600, while the sum is 43.

The spelling of 121755742414 in words is "one hundred twenty-one billion, seven hundred fifty-five million, seven hundred forty-two thousand, four hundred fourteen".