653230121601 has 4 divisors (see below), whose sum is σ = 870973495472. Its totient is φ = 435486747732.

The previous prime is 653230121591. The next prime is 653230121653. The reversal of 653230121601 is 106121032356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 653230121601 - 2¹⁴ = 653230105217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653230121671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108871686931 + ... + 108871686936.

It is an arithmetic number, because the mean of its divisors is an integer number (217743373868).

Almost surely, 2^653230121601 is an apocalyptic number.

It is an amenable number.

653230121601 is a deficient number, since it is larger than the sum of its proper divisors (217743373871).

653230121601 is a wasteful number, since it uses less digits than its factorization.

653230121601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217743373870.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 653230121601 its reverse (106121032356), we get a palindrome (759351153957).

The spelling of 653230121601 in words is "six hundred fifty-three billion, two hundred thirty million, one hundred twenty-one thousand, six hundred one".