20103427 has 2 divisors, whose sum is σ = 20103428. Its totient is φ = 20103426.

The previous prime is 20103383. The next prime is 20103443. The reversal of 20103427 is 72430102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20103427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20103487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051713 + 10051714.

It is an arithmetic number, because the mean of its divisors is an integer number (10051714).

Almost surely, 2^20103427 is an apocalyptic number.

20103427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103427 is an equidigital number, since it uses as much as digits as its factorization.

20103427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20103427 is about 4483.6845339520. The cubic root of 20103427 is about 271.9088641836.

Adding to 20103427 its reverse (72430102), we get a palindrome (92533529).

The spelling of 20103427 in words is "twenty million, one hundred three thousand, four hundred twenty-seven".