20320221130 has 16 divisors (see below), whose sum is σ = 39901525344. Its totient is φ = 7389171280.

The previous prime is 20320221121. The next prime is 20320221139. The reversal of 20320221130 is 3112202302.

It is an interprime number because it is at equal distance from previous prime (20320221121) and next prime (20320221139).

It is a super-2 number, since 2×20320221130² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20320221139) 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, 92364532 + ... + 92364751.

It is an arithmetic number, because the mean of its divisors is an integer number (2493845334).

Almost surely, 2^20320221130 is an apocalyptic number.

20320221130 is a deficient number, since it is larger than the sum of its proper divisors (19581304214).

20320221130 is a wasteful number, since it uses less digits than its factorization.

20320221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184729301.

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

Adding to 20320221130 its reverse (3112202302), we get a palindrome (23432423432).

The spelling of 20320221130 in words is "twenty billion, three hundred twenty million, two hundred twenty-one thousand, one hundred thirty".