121033320 has 32 divisors (see below), whose sum is σ = 363100320. Its totient is φ = 32275520.

The previous prime is 121033313. The next prime is 121033321. The reversal of 121033320 is 23330121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121033320.

It is not an unprimeable number, because it can be changed into a prime (121033321) 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, 504186 + ... + 504425.

It is an arithmetic number, because the mean of its divisors is an integer number (11346885).

Almost surely, 2^121033320 is an apocalyptic number.

121033320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121033320 is an abundant number, since it is smaller than the sum of its proper divisors (242067000).

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

121033320 is a wasteful number, since it uses less digits than its factorization.

121033320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008625 (or 1008621 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 121033320 is about 11001.5144412031. The cubic root of 121033320 is about 494.6541406082.

Adding to 121033320 its reverse (23330121), we get a palindrome (144363441).

The spelling of 121033320 in words is "one hundred twenty-one million, thirty-three thousand, three hundred twenty".