320203122020130 has 64 divisors (see below), whose sum is σ = 814231154112768. Its totient is φ = 80311518504960.

The previous prime is 320203122020039. The next prime is 320203122020137. The reversal of 320203122020130 is 31020221302023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320203122020097 and 320203122020106.

It is not an unprimeable number, because it can be changed into a prime (320203122020137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206988907 + ... + 208530126.

It is an arithmetic number, because the mean of its divisors is an integer number (12722361783012).

Almost surely, 2^{320203122020130} is an apocalyptic number.

320203122020130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320203122020130 is an abundant number, since it is smaller than the sum of its proper divisors (494028032092638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320203122020130 is a wasteful number, since it uses less digits than its factorization.

320203122020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415520571.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 320203122020130 its reverse (31020221302023), we get a palindrome (351223343322153).

The spelling of 320203122020130 in words is "three hundred twenty trillion, two hundred three billion, one hundred twenty-two million, twenty thousand, one hundred thirty".