121533351005 has 32 divisors (see below), whose sum is σ = 161047692288. Its totient is φ = 87308928000.

The previous prime is 121533351001. The next prime is 121533351011. The reversal of 121533351005 is 500153335121.

It is a happy number.

It is not a de Polignac number, because 121533351005 - 2² = 121533351001 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 (121533351001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2380052 + ... + 2430578.

It is an arithmetic number, because the mean of its divisors is an integer number (5032740384).

Almost surely, 2^121533351005 is an apocalyptic number.

It is an amenable number.

121533351005 is a deficient number, since it is larger than the sum of its proper divisors (39514341283).

121533351005 is a wasteful number, since it uses less digits than its factorization.

121533351005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51077.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 121533351005 its reverse (500153335121), we get a palindrome (621686686126).

The spelling of 121533351005 in words is "one hundred twenty-one billion, five hundred thirty-three million, three hundred fifty-one thousand, five".