20431302341 has 4 divisors (see below), whose sum is σ = 20504011884. Its totient is φ = 20358592800.

The previous prime is 20431302329. The next prime is 20431302347. The reversal of 20431302341 is 14320313402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14320313402 = 2 ⋅7160156701.

It can be written as a sum of positive squares in 2 ways, for example, as 6443272900 + 13988029441 = 80270^2 + 118271^2 .

It is a cyclic number.

It is not a de Polignac number, because 20431302341 - 2³⁰ = 19357560517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431302347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36354350 + ... + 36354911.

It is an arithmetic number, because the mean of its divisors is an integer number (5126002971).

Almost surely, 2^20431302341 is an apocalyptic number.

It is an amenable number.

20431302341 is a deficient number, since it is larger than the sum of its proper divisors (72709543).

20431302341 is an equidigital number, since it uses as much as digits as its factorization.

20431302341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72709542.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20431302341 its reverse (14320313402), we get a palindrome (34751615743).

The spelling of 20431302341 in words is "twenty billion, four hundred thirty-one million, three hundred two thousand, three hundred forty-one".