121314520 has 64 divisors (see below), whose sum is σ = 281128320. Its totient is φ = 47092224.

The previous prime is 121314517. The next prime is 121314541. The reversal of 121314520 is 25413121.

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, 325054 + ... + 325426.

It is an arithmetic number, because the mean of its divisors is an integer number (4392630).

Almost surely, 2^121314520 is an apocalyptic number.

121314520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121314520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140564160).

121314520 is an abundant number, since it is smaller than the sum of its proper divisors (159813800).

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

121314520 is a wasteful number, since it uses less digits than its factorization.

121314520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 121314520 is about 11014.2870854177. The cubic root of 121314520 is about 495.0369254500.

Adding to 121314520 its reverse (25413121), we get a palindrome (146727641).

The spelling of 121314520 in words is "one hundred twenty-one million, three hundred fourteen thousand, five hundred twenty".