20432014391 has 2 divisors, whose sum is σ = 20432014392. Its totient is φ = 20432014390.

The previous prime is 20432014283. The next prime is 20432014397. The reversal of 20432014391 is 19341023402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20432014391 - 2²² = 20427820087 is a prime.

It is a super-2 number, since 2×20432014391² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432014397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216007195 + 10216007196.

It is an arithmetic number, because the mean of its divisors is an integer number (10216007196).

Almost surely, 2^20432014391 is an apocalyptic number.

20432014391 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432014391 is an equidigital number, since it uses as much as digits as its factorization.

20432014391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 20432014391 its reverse (19341023402), we get a palindrome (39773037793).

The spelling of 20432014391 in words is "twenty billion, four hundred thirty-two million, fourteen thousand, three hundred ninety-one".