200131020 has 48 divisors (see below), whose sum is σ = 622631520. Its totient is φ = 53368128.

The previous prime is 200131003. The next prime is 200131031. The reversal of 200131020 is 20131002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200130993 and 200131011.

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, 184767 + ... + 185846.

It is an arithmetic number, because the mean of its divisors is an integer number (12971490).

Almost surely, 2^200131020 is an apocalyptic number.

200131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200131020 is an abundant number, since it is smaller than the sum of its proper divisors (422500500).

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

200131020 is a wasteful number, since it uses less digits than its factorization.

200131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370631 (or 370623 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 200131020 is about 14146.7671218551. The cubic root of 200131020 is about 584.9312213683.

Adding to 200131020 its reverse (20131002), we get a palindrome (220262022).

The spelling of 200131020 in words is "two hundred million, one hundred thirty-one thousand, twenty".