121301663 has 8 divisors (see below), whose sum is σ = 138697728. Its totient is φ = 103922424.

The previous prime is 121301641. The next prime is 121301669. The reversal of 121301663 is 366103121.

It is a happy number.

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 121301663 - 2¹⁰ = 121300639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22970 + ... + 27752.

It is an arithmetic number, because the mean of its divisors is an integer number (17337216).

Almost surely, 2^121301663 is an apocalyptic number.

121301663 is a deficient number, since it is larger than the sum of its proper divisors (17396065).

121301663 is an equidigital number, since it uses as much as digits as its factorization.

121301663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8413.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 121301663 is about 11013.7034189232. The cubic root of 121301663 is about 495.0194367092.

Adding to 121301663 its reverse (366103121), we get a palindrome (487404784).

The spelling of 121301663 in words is "one hundred twenty-one million, three hundred one thousand, six hundred sixty-three".