102030001321 has 8 divisors (see below), whose sum is σ = 102300237000. Its totient is φ = 101760040320.

The previous prime is 102030001313. The next prime is 102030001373. The reversal of 102030001321 is 123100030201.

It can be written as a sum of positive squares in 4 ways, for example, as 14865705625 + 87164295696 = 121925^2 + 295236^2 .

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 102030001321 - 2³ = 102030001313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102030001421) 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, 686155 + ... + 821503.

It is an arithmetic number, because the mean of its divisors is an integer number (12787529625).

Almost surely, 2^102030001321 is an apocalyptic number.

It is an amenable number.

102030001321 is a deficient number, since it is larger than the sum of its proper divisors (270235679).

102030001321 is a wasteful number, since it uses less digits than its factorization.

102030001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137339.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 102030001321 its reverse (123100030201), we get a palindrome (225130031522).

The spelling of 102030001321 in words is "one hundred two billion, thirty million, one thousand, three hundred twenty-one".