102553001321 has 4 divisors (see below), whose sum is σ = 103548661632. Its totient is φ = 101557341012.

The previous prime is 102553001273. The next prime is 102553001377. The reversal of 102553001321 is 123100355201.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 102553001321 - 2³⁴ = 85373132137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102553001921) 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 3 ways as a sum of consecutive naturals, for example, 497830001 + ... + 497830206.

It is an arithmetic number, because the mean of its divisors is an integer number (25887165408).

Almost surely, 2^102553001321 is an apocalyptic number.

It is an amenable number.

102553001321 is a deficient number, since it is larger than the sum of its proper divisors (995660311).

102553001321 is an equidigital number, since it uses as much as digits as its factorization.

102553001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995660310.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 102553001321 its reverse (123100355201), we get a palindrome (225653356522).

The spelling of 102553001321 in words is "one hundred two billion, five hundred fifty-three million, one thousand, three hundred twenty-one".