121206063 has 24 divisors (see below), whose sum is σ = 183382528. Its totient is φ = 71082000.

The previous prime is 121206037. The next prime is 121206077. The reversal of 121206063 is 360602121.

It is a happy number.

It is not a de Polignac number, because 121206063 - 2⁵ = 121206031 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 (121206013) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5868 + ... + 16638.

Almost surely, 2^121206063 is an apocalyptic number.

121206063 is a deficient number, since it is larger than the sum of its proper divisors (62176465).

121206063 is a wasteful number, since it uses less digits than its factorization.

121206063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10827 (or 10816 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 121206063 is about 11009.3625156046. The cubic root of 121206063 is about 494.8893579873.

Adding to 121206063 its reverse (360602121), we get a palindrome (481808184).

The spelling of 121206063 in words is "one hundred twenty-one million, two hundred six thousand, sixty-three".