20432502127 has 2 divisors, whose sum is σ = 20432502128. Its totient is φ = 20432502126.

The previous prime is 20432502109. The next prime is 20432502227. The reversal of 20432502127 is 72120523402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20432502127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20432502095 and 20432502104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432502227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216251063 + 10216251064.

It is an arithmetic number, because the mean of its divisors is an integer number (10216251064).

Almost surely, 2^20432502127 is an apocalyptic number.

20432502127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432502127 is an equidigital number, since it uses as much as digits as its factorization.

20432502127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The spelling of 20432502127 in words is "twenty billion, four hundred thirty-two million, five hundred two thousand, one hundred twenty-seven".