121551251333 has 8 divisors (see below), whose sum is σ = 122923765440. Its totient is φ = 120178887840.

The previous prime is 121551251293. The next prime is 121551251389. The reversal of 121551251333 is 333152155121.

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 121551251333 - 2⁸ = 121551251077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121551251333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121551221333) 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 7 ways as a sum of consecutive naturals, for example, 2703866 + ... + 2748452.

It is an arithmetic number, because the mean of its divisors is an integer number (15365470680).

Almost surely, 2^121551251333 is an apocalyptic number.

It is an amenable number.

121551251333 is a deficient number, since it is larger than the sum of its proper divisors (1372514107).

121551251333 is an equidigital number, since it uses as much as digits as its factorization.

121551251333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75307.

The product of its digits is 13500, while the sum is 32.

The spelling of 121551251333 in words is "one hundred twenty-one billion, five hundred fifty-one million, two hundred fifty-one thousand, three hundred thirty-three".