200831401 has 2 divisors, whose sum is σ = 200831402. Its totient is φ = 200831400.

The previous prime is 200831399. The next prime is 200831429. The reversal of 200831401 is 104138002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132273001 + 68558400 = 11501^2 + 8280^2 .

It is a cyclic number.

It is not a de Polignac number, because 200831401 - 2¹ = 200831399 is a prime.

Together with 200831399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (200831441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100415700 + 100415701.

It is an arithmetic number, because the mean of its divisors is an integer number (100415701).

Almost surely, 2^200831401 is an apocalyptic number.

It is an amenable number.

200831401 is a deficient number, since it is larger than the sum of its proper divisors (1).

200831401 is an equidigital number, since it uses as much as digits as its factorization.

200831401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 200831401 is about 14171.4996030766. The cubic root of 200831401 is about 585.6127711181.

Adding to 200831401 its reverse (104138002), we get a palindrome (304969403).

The spelling of 200831401 in words is "two hundred million, eight hundred thirty-one thousand, four hundred one".