121029987934 has 16 divisors (see below), whose sum is σ = 185341122000. Its totient is φ = 59254191360.

The previous prime is 121029987913. The next prime is 121029987959. The reversal of 121029987934 is 439789920121.

It is a happy number.

121029987934 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1091187 + ... + 1196974.

It is an arithmetic number, because the mean of its divisors is an integer number (11583820125).

Almost surely, 2^121029987934 is an apocalyptic number.

121029987934 is a deficient number, since it is larger than the sum of its proper divisors (64311134066).

121029987934 is a wasteful number, since it uses less digits than its factorization.

121029987934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288715.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 121029987934 in words is "one hundred twenty-one billion, twenty-nine million, nine hundred eighty-seven thousand, nine hundred thirty-four".