654641021100121 has 8 divisors (see below), whose sum is σ = 723193763241600. Its totient is φ = 587594932632240.

The previous prime is 654641021100089. The next prime is 654641021100221. The reversal of 654641021100121 is 121001120146456.

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 654641021100121 - 2⁵ = 654641021100089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654641021100221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376663417486 + ... + 376663419223.

It is an arithmetic number, because the mean of its divisors is an integer number (90399220405200).

Almost surely, 2^{654641021100121} is an apocalyptic number.

It is an amenable number.

654641021100121 is a deficient number, since it is larger than the sum of its proper divisors (68552742141479).

654641021100121 is a wasteful number, since it uses less digits than its factorization.

654641021100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753326836799.

The product of its (nonzero) digits is 11520, while the sum is 34.

Adding to 654641021100121 its reverse (121001120146456), we get a palindrome (775642141246577).

The spelling of 654641021100121 in words is "six hundred fifty-four trillion, six hundred forty-one billion, twenty-one million, one hundred thousand, one hundred twenty-one".