121203968 has 18 divisors (see below), whose sum is σ = 241934994. Its totient is φ = 60601856.

The previous prime is 121203947. The next prime is 121203991. The reversal of 121203968 is 869302121.

It can be written as a sum of positive squares in only one way, i.e., 80856064 + 40347904 = 8992^2 + 6352^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236471 + ... + 236982.

It is an arithmetic number, because the mean of its divisors is an integer number (13440833).

Almost surely, 2^121203968 is an apocalyptic number.

It is an amenable number.

121203968 is a deficient number, since it is larger than the sum of its proper divisors (120731026).

121203968 is an frugal number, since it uses more digits than its factorization.

121203968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473469 (or 473455 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 121203968 is about 11009.2673689033. The cubic root of 121203968 is about 494.8865066470.

The spelling of 121203968 in words is "one hundred twenty-one million, two hundred three thousand, nine hundred sixty-eight".