23020130321 has 8 divisors (see below), whose sum is σ = 24385961160. Its totient is φ = 21655600128.

The previous prime is 23020130317. The next prime is 23020130351. The reversal of 23020130321 is 12303102032.

It can be written as a sum of positive squares in 4 ways, for example, as 8114406400 + 14905723921 = 90080^2 + 122089^2 .

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 23020130321 - 2² = 23020130317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23020130321.

It is not an unprimeable number, because it can be changed into a prime (23020130311) 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, 288596 + ... + 359621.

It is an arithmetic number, because the mean of its divisors is an integer number (3048245145).

Almost surely, 2^23020130321 is an apocalyptic number.

It is an amenable number.

23020130321 is a deficient number, since it is larger than the sum of its proper divisors (1365830839).

23020130321 is a wasteful number, since it uses less digits than its factorization.

23020130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650323.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23020130321 its reverse (12303102032), we get a palindrome (35323232353).

The spelling of 23020130321 in words is "twenty-three billion, twenty million, one hundred thirty thousand, three hundred twenty-one".