121314780 has 96 divisors (see below), whose sum is σ = 389652480. Its totient is φ = 31302720.

The previous prime is 121314779. The next prime is 121314793. The reversal of 121314780 is 87413121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13117 + ... + 20363.

It is an arithmetic number, because the mean of its divisors is an integer number (4058880).

Almost surely, 2^121314780 is an apocalyptic number.

121314780 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 121314780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194826240).

121314780 is an abundant number, since it is smaller than the sum of its proper divisors (268337700).

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

121314780 is a wasteful number, since it uses less digits than its factorization.

121314780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296 (or 7288 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 121314780 is about 11014.2988882634. The cubic root of 121314780 is about 495.0372791024.

The spelling of 121314780 in words is "one hundred twenty-one million, three hundred fourteen thousand, seven hundred eighty".