121330455 has 16 divisors (see below), whose sum is σ = 194283360. Its totient is φ = 64658048.

The previous prime is 121330427. The next prime is 121330483. The reversal of 121330455 is 554033121.

It is an interprime number because it is at equal distance from previous prime (121330427) and next prime (121330483).

It is a cyclic number.

It is not a de Polignac number, because 121330455 - 2⁵ = 121330423 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 23269 + ... + 28001.

It is an arithmetic number, because the mean of its divisors is an integer number (12142710).

Almost surely, 2^121330455 is an apocalyptic number.

121330455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121330455 is a deficient number, since it is larger than the sum of its proper divisors (72952905).

121330455 is a wasteful number, since it uses less digits than its factorization.

121330455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 121330455 is about 11015.0104403037. The cubic root of 121330455 is about 495.0585993273.

Adding to 121330455 its reverse (554033121), we get a palindrome (675363576).

The spelling of 121330455 in words is "one hundred twenty-one million, three hundred thirty thousand, four hundred fifty-five".