20611476503 has 2 divisors, whose sum is σ = 20611476504. Its totient is φ = 20611476502.

The previous prime is 20611476463. The next prime is 20611476527. The reversal of 20611476503 is 30567411602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20611476503 - 2¹⁴ = 20611460119 is a prime.

It is a super-2 number, since 2×20611476503² (a number of 21 digits) 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 (20611476533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10305738251 + 10305738252.

It is an arithmetic number, because the mean of its divisors is an integer number (10305738252).

Almost surely, 2^20611476503 is an apocalyptic number.

20611476503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20611476503 is an equidigital number, since it uses as much as digits as its factorization.

20611476503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 20611476503 in words is "twenty billion, six hundred eleven million, four hundred seventy-six thousand, five hundred three".