203120461 has 2 divisors, whose sum is σ = 203120462. Its totient is φ = 203120460.

The previous prime is 203120459. The next prime is 203120473. The reversal of 203120461 is 164021302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198979236 + 4141225 = 14106^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 203120461 - 2¹ = 203120459 is a prime.

Together with 203120459, it forms a pair of twin primes.

It is equal to p_11242126 and since 203120461 and 11242126 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203120441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101560230 + 101560231.

It is an arithmetic number, because the mean of its divisors is an integer number (101560231).

Almost surely, 2^203120461 is an apocalyptic number.

It is an amenable number.

203120461 is a deficient number, since it is larger than the sum of its proper divisors (1).

203120461 is an equidigital number, since it uses as much as digits as its factorization.

203120461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 203120461 is about 14252.0335741956. The cubic root of 203120461 is about 587.8292933506.

Adding to 203120461 its reverse (164021302), we get a palindrome (367141763).

The spelling of 203120461 in words is "two hundred three million, one hundred twenty thousand, four hundred sixty-one".