121079838 has 32 divisors (see below), whose sum is σ = 264580992. Its totient is φ = 36634400.

The previous prime is 121079821. The next prime is 121079887. The reversal of 121079838 is 838970121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121079796 and 121079805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65953 + ... + 67763.

It is an arithmetic number, because the mean of its divisors is an integer number (8268156).

Almost surely, 2^121079838 is an apocalyptic number.

121079838 is an abundant number, since it is smaller than the sum of its proper divisors (143501154).

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

121079838 is a wasteful number, since it uses less digits than its factorization.

121079838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 121079838 is about 11003.6284015774. The cubic root of 121079838 is about 494.7175043552.

It can be divided in two parts, 12107 and 9838, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 121079838 in words is "one hundred twenty-one million, seventy-nine thousand, eight hundred thirty-eight".