320597101900 has 18 divisors (see below), whose sum is σ = 695695711340. Its totient is φ = 128238840720.

The previous prime is 320597101837. The next prime is 320597101921. The reversal of 320597101900 is 9101795023.

It is a super-2 number, since 2×320597101900² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320597101900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1602985410 + ... + 1602985609.

Almost surely, 2^320597101900 is an apocalyptic number.

It is an amenable number.

320597101900 is an abundant number, since it is smaller than the sum of its proper divisors (375098609440).

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

320597101900 is a wasteful number, since it uses less digits than its factorization.

320597101900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205971033 (or 3205971026 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 37.

Adding to 320597101900 its reverse (9101795023), we get a palindrome (329698896923).

The spelling of 320597101900 in words is "three hundred twenty billion, five hundred ninety-seven million, one hundred one thousand, nine hundred".