20461003 has 2 divisors, whose sum is σ = 20461004. Its totient is φ = 20461002.

The previous prime is 20460989. The next prime is 20461019. The reversal of 20461003 is 30016402.

It is an a-pointer prime, because the next prime (20461019) can be obtained adding 20461003 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20461003 - 2¹³ = 20452811 is a prime.

It is not a weakly prime, because it can be changed into another prime (20461033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230501 + 10230502.

It is an arithmetic number, because the mean of its divisors is an integer number (10230502).

Almost surely, 2^20461003 is an apocalyptic number.

20461003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461003 is an equidigital number, since it uses as much as digits as its factorization.

20461003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20461003 is about 4523.3840208410. The cubic root of 20461003 is about 273.5115304727.

Adding to 20461003 its reverse (30016402), we get a palindrome (50477405).

The spelling of 20461003 in words is "twenty million, four hundred sixty-one thousand, three".