20202432427 has 2 divisors, whose sum is σ = 20202432428. Its totient is φ = 20202432426.

The previous prime is 20202432401. The next prime is 20202432451. The reversal of 20202432427 is 72423420202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202432427 is a prime.

It is a super-2 number, since 2×20202432427² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202432395 and 20202432404.

It is not a weakly prime, because it can be changed into another prime (20202435427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101216213 + 10101216214.

It is an arithmetic number, because the mean of its divisors is an integer number (10101216214).

Almost surely, 2^20202432427 is an apocalyptic number.

20202432427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202432427 is an equidigital number, since it uses as much as digits as its factorization.

20202432427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 28.

Adding to 20202432427 its reverse (72423420202), we get a palindrome (92625852629).

The spelling of 20202432427 in words is "twenty billion, two hundred two million, four hundred thirty-two thousand, four hundred twenty-seven".