121030321012 has 12 divisors (see below), whose sum is σ = 211806697536. Its totient is φ = 60514121720.

The previous prime is 121030320973. The next prime is 121030321103. The reversal of 121030321012 is 210123030121.

121030321012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 41187 + ... + 493717.

It is an arithmetic number, because the mean of its divisors is an integer number (17650558128).

Almost surely, 2^121030321012 is an apocalyptic number.

It is an amenable number.

121030321012 is a deficient number, since it is larger than the sum of its proper divisors (90776376524).

121030321012 is a wasteful number, since it uses less digits than its factorization.

121030321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519398 (or 519396 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121030321012 its reverse (210123030121), we get a palindrome (331153351133).

The spelling of 121030321012 in words is "one hundred twenty-one billion, thirty million, three hundred twenty-one thousand, twelve".