121280396 has 24 divisors (see below), whose sum is σ = 215245296. Its totient is φ = 59787200.

The previous prime is 121280387. The next prime is 121280399. The reversal of 121280396 is 693082121.

It is not an unprimeable number, because it can be changed into a prime (121280399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127595 + ... + 128541.

It is an arithmetic number, because the mean of its divisors is an integer number (8968554).

Almost surely, 2^121280396 is an apocalyptic number.

It is an amenable number.

121280396 is a deficient number, since it is larger than the sum of its proper divisors (93964900).

121280396 is a wasteful number, since it uses less digits than its factorization.

121280396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1367 counting only the distinct ones).

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

The square root of 121280396 is about 11012.7378975439. The cubic root of 121280396 is about 494.9905055486.

The spelling of 121280396 in words is "one hundred twenty-one million, two hundred eighty thousand, three hundred ninety-six".