320020021130 has 32 divisors (see below), whose sum is σ = 578625681600. Its totient is φ = 127433134080.

The previous prime is 320020021127. The next prime is 320020021141. The reversal of 320020021130 is 31120020023.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4329785 + ... + 4403075.

It is an arithmetic number, because the mean of its divisors is an integer number (18082052550).

Almost surely, 2^320020021130 is an apocalyptic number.

320020021130 is a deficient number, since it is larger than the sum of its proper divisors (258605660470).

320020021130 is a wasteful number, since it uses less digits than its factorization.

320020021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75254.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 320020021130 its reverse (31120020023), we get a palindrome (351140041153).

The spelling of 320020021130 in words is "three hundred twenty billion, twenty million, twenty-one thousand, one hundred thirty".