200242831 has 2 divisors, whose sum is σ = 200242832. Its totient is φ = 200242830.

The previous prime is 200242799. The next prime is 200242837. The reversal of 200242831 is 138242002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200242831 - 2⁵ = 200242799 is a prime.

It is a super-2 number, since 2×200242831² = 80194382733789122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200242837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100121415 + 100121416.

It is an arithmetic number, because the mean of its divisors is an integer number (100121416).

Almost surely, 2^200242831 is an apocalyptic number.

200242831 is a deficient number, since it is larger than the sum of its proper divisors (1).

200242831 is an equidigital number, since it uses as much as digits as its factorization.

200242831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 200242831 is about 14150.7183916577. The cubic root of 200242831 is about 585.0401326352.

Adding to 200242831 its reverse (138242002), we get a palindrome (338484833).

The spelling of 200242831 in words is "two hundred million, two hundred forty-two thousand, eight hundred thirty-one".