121308045506 has 8 divisors (see below), whose sum is σ = 191539019280. Its totient is φ = 57461705748.

The previous prime is 121308045461. The next prime is 121308045533. The reversal of 121308045506 is 605540803121.

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

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 3 ways as a sum of consecutive naturals, for example, 1596158456 + ... + 1596158531.

It is an arithmetic number, because the mean of its divisors is an integer number (23942377410).

Almost surely, 2^121308045506 is an apocalyptic number.

121308045506 is a deficient number, since it is larger than the sum of its proper divisors (70230973774).

121308045506 is a wasteful number, since it uses less digits than its factorization.

121308045506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192317008.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 121308045506 its reverse (605540803121), we get a palindrome (726848848627).

The spelling of 121308045506 in words is "one hundred twenty-one billion, three hundred eight million, forty-five thousand, five hundred six".