100345552421321 has 32 divisors (see below), whose sum is σ = 105769072684800. Its totient is φ = 95073820830720.

The previous prime is 100345552421273. The next prime is 100345552421399. The reversal of 100345552421321 is 123124255543001.

It is a de Polignac number, because none of the positive numbers 2^k-100345552421321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100345552421921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1986897356 + ... + 1986947858.

It is an arithmetic number, because the mean of its divisors is an integer number (3305283521400).

Almost surely, 2^{100345552421321} is an apocalyptic number.

It is an amenable number.

100345552421321 is a deficient number, since it is larger than the sum of its proper divisors (5423520263479).

100345552421321 is a wasteful number, since it uses less digits than its factorization.

100345552421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53009.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 100345552421321 in words is "one hundred trillion, three hundred forty-five billion, five hundred fifty-two million, four hundred twenty-one thousand, three hundred twenty-one".