121320410 has 32 divisors (see below), whose sum is σ = 226081152. Its totient is φ = 46837440.

The previous prime is 121320403. The next prime is 121320481. The reversal of 121320410 is 14023121.

121320410 = T₃₆₄ + T₃₆₅ + ... + T₉₁₈.

It is a Curzon 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, 47219 + ... + 49721.

It is an arithmetic number, because the mean of its divisors is an integer number (7065036).

Almost surely, 2^121320410 is an apocalyptic number.

121320410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121320410 is a deficient number, since it is larger than the sum of its proper divisors (104760742).

121320410 is a wasteful number, since it uses less digits than its factorization.

121320410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121320410 is about 11014.5544621650. The cubic root of 121320410 is about 495.0449369128.

Adding to 121320410 its reverse (14023121), we get a palindrome (135343531).

The spelling of 121320410 in words is "one hundred twenty-one million, three hundred twenty thousand, four hundred ten".