201204431 has 2 divisors, whose sum is σ = 201204432. Its totient is φ = 201204430.

The previous prime is 201204427. The next prime is 201204461. The reversal of 201204431 is 134402102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201204431 - 2² = 201204427 is a prime.

It is a super-2 number, since 2×201204431² = 80966446108067522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201204461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100602215 + 100602216.

It is an arithmetic number, because the mean of its divisors is an integer number (100602216).

Almost surely, 2^201204431 is an apocalyptic number.

201204431 is a deficient number, since it is larger than the sum of its proper divisors (1).

201204431 is an equidigital number, since it uses as much as digits as its factorization.

201204431 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 17.

The square root of 201204431 is about 14184.6547719710. The cubic root of 201204431 is about 585.9751248434.

Adding to 201204431 its reverse (134402102), we get a palindrome (335606533).

The spelling of 201204431 in words is "two hundred one million, two hundred four thousand, four hundred thirty-one".