121079490168 has 128 divisors (see below), whose sum is σ = 372754368000. Its totient is φ = 31915731456.

The previous prime is 121079490139. The next prime is 121079490187. The reversal of 121079490168 is 861094970121.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4294983 + ... + 4323081.

It is an arithmetic number, because the mean of its divisors is an integer number (2912143500).

Almost surely, 2^121079490168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121079490168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186377184000).

121079490168 is an abundant number, since it is smaller than the sum of its proper divisors (251674877832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121079490168 is a wasteful number, since it uses less digits than its factorization.

121079490168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30101 (or 30097 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 121079490168 in words is "one hundred twenty-one billion, seventy-nine million, four hundred ninety thousand, one hundred sixty-eight".