20131269343 has 2 divisors, whose sum is σ = 20131269344. Its totient is φ = 20131269342.

The previous prime is 20131269337. The next prime is 20131269359. The reversal of 20131269343 is 34396213102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20131269343 - 2⁵ = 20131269311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20131269299 and 20131269308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131269383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065634671 + 10065634672.

It is an arithmetic number, because the mean of its divisors is an integer number (10065634672).

Almost surely, 2^20131269343 is an apocalyptic number.

20131269343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131269343 is an equidigital number, since it uses as much as digits as its factorization.

20131269343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 20131269343 in words is "twenty billion, one hundred thirty-one million, two hundred sixty-nine thousand, three hundred forty-three".