20320121230 has 16 divisors (see below), whose sum is σ = 36590647104. Its totient is φ = 8124842080.

The previous prime is 20320121113. The next prime is 20320121249. The reversal of 20320121230 is 3212102302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374101 + ... + 424960.

It is an arithmetic number, because the mean of its divisors is an integer number (2286915444).

Almost surely, 2^20320121230 is an apocalyptic number.

20320121230 is a deficient number, since it is larger than the sum of its proper divisors (16270525874).

20320121230 is a wasteful number, since it uses less digits than its factorization.

20320121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801611.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20320121230 its reverse (3212102302), we get a palindrome (23532223532).

The spelling of 20320121230 in words is "twenty billion, three hundred twenty million, one hundred twenty-one thousand, two hundred thirty".