121312801 has 8 divisors (see below), whose sum is σ = 123816384. Its totient is φ = 118831440.

The previous prime is 121312783. The next prime is 121312811. The reversal of 121312801 is 108213121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121312801 - 2¹⁹ = 120788513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121312811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5706 + ... + 16588.

It is an arithmetic number, because the mean of its divisors is an integer number (15477048).

Almost surely, 2^121312801 is an apocalyptic number.

It is an amenable number.

121312801 is a deficient number, since it is larger than the sum of its proper divisors (2503583).

121312801 is a wasteful number, since it uses less digits than its factorization.

121312801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 121312801 is about 11014.2090501316. The cubic root of 121312801 is about 495.0345872509.

Adding to 121312801 its reverse (108213121), we get a palindrome (229525922).

The spelling of 121312801 in words is "one hundred twenty-one million, three hundred twelve thousand, eight hundred one".