331000201020 has 48 divisors (see below), whose sum is σ = 981318246048. Its totient is φ = 83074560000.

The previous prime is 331000201019. The next prime is 331000201027. The reversal of 331000201020 is 20102000133.

It is a happy number.

It is a super-2 number, since 2×331000201020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 331000200987 and 331000201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331000201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162253981 + ... + 162256020.

It is an arithmetic number, because the mean of its divisors is an integer number (20444130126).

Almost surely, 2^331000201020 is an apocalyptic number.

331000201020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331000201020 is an abundant number, since it is smaller than the sum of its proper divisors (650318045028).

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

331000201020 is a wasteful number, since it uses less digits than its factorization.

331000201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324510030 (or 324510028 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 331000201020 its reverse (20102000133), we get a palindrome (351102201153).

The spelling of 331000201020 in words is "three hundred thirty-one billion, two hundred one thousand, twenty".