20727103 has 2 divisors, whose sum is σ = 20727104. Its totient is φ = 20727102.

The previous prime is 20727089. The next prime is 20727137. The reversal of 20727103 is 30172702.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20727103 is a prime.

It is a super-2 number, since 2×20727103² = 859225597545218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20727193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10363551 + 10363552.

It is an arithmetic number, because the mean of its divisors is an integer number (10363552).

Almost surely, 2^20727103 is an apocalyptic number.

20727103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20727103 is an equidigital number, since it uses as much as digits as its factorization.

20727103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 20727103 is about 4552.7028235983. The cubic root of 20727103 is about 274.6921204522.

Adding to 20727103 its reverse (30172702), we get a palindrome (50899805).

The spelling of 20727103 in words is "twenty million, seven hundred twenty-seven thousand, one hundred three".