200231001 has 8 divisors (see below), whose sum is σ = 296638560. Its totient is φ = 133487316.

The previous prime is 200230969. The next prime is 200231021. The reversal of 200231001 is 100132002.

It is a happy number.

It is not a de Polignac number, because 200231001 - 2⁵ = 200230969 is a prime.

It is a super-2 number, since 2×200231001² = 80184907522924002, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200231021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3707955 + ... + 3708008.

It is an arithmetic number, because the mean of its divisors is an integer number (37079820).

Almost surely, 2^200231001 is an apocalyptic number.

It is an amenable number.

200231001 is a deficient number, since it is larger than the sum of its proper divisors (96407559).

200231001 is an equidigital number, since it uses as much as digits as its factorization.

200231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415972 (or 7415966 counting only the distinct ones).

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

The square root of 200231001 is about 14150.3003855042. The cubic root of 200231001 is about 585.0286113554.

Adding to 200231001 its reverse (100132002), we get a palindrome (300363003).

The spelling of 200231001 in words is "two hundred million, two hundred thirty-one thousand, one".