121078320 has 80 divisors (see below), whose sum is σ = 409473792. Its totient is φ = 29351680.

The previous prime is 121078303. The next prime is 121078327. The reversal of 121078320 is 23870121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (121078327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20292 + ... + 25571.

Almost surely, 2^121078320 is an apocalyptic number.

121078320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121078320 is an abundant number, since it is smaller than the sum of its proper divisors (288395472).

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

121078320 is a wasteful number, since it uses less digits than its factorization.

121078320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45890 (or 45884 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 121078320 is about 11003.5594241136. The cubic root of 121078320 is about 494.7154368921.

The spelling of 121078320 in words is "one hundred twenty-one million, seventy-eight thousand, three hundred twenty".