20232130321 has 16 divisors (see below), whose sum is σ = 23693647824. Its totient is φ = 17102168064.

The previous prime is 20232130309. The next prime is 20232130339. The reversal of 20232130321 is 12303123202.

It can be written as a sum of positive squares in 8 ways, for example, as 211295296 + 20020835025 = 14536^2 + 141495^2 .

It is a cyclic number.

It is not a de Polignac number, because 20232130321 - 2¹³ = 20232122129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20232130301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228960 + ... + 1245313.

It is an arithmetic number, because the mean of its divisors is an integer number (1480852989).

Almost surely, 2^20232130321 is an apocalyptic number.

It is an amenable number.

20232130321 is a deficient number, since it is larger than the sum of its proper divisors (3461517503).

20232130321 is a wasteful number, since it uses less digits than its factorization.

20232130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474340.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20232130321 its reverse (12303123202), we get a palindrome (32535253523).

The spelling of 20232130321 in words is "twenty billion, two hundred thirty-two million, one hundred thirty thousand, three hundred twenty-one".