20343141439 has 4 divisors (see below), whose sum is σ = 20999371840. Its totient is φ = 19686911040.

The previous prime is 20343141431. The next prime is 20343141457. The reversal of 20343141439 is 93414134302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20343141439 - 2³ = 20343141431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343141431) 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, 328115154 + ... + 328115215.

It is an arithmetic number, because the mean of its divisors is an integer number (5249842960).

Almost surely, 2^20343141439 is an apocalyptic number.

20343141439 is a deficient number, since it is larger than the sum of its proper divisors (656230401).

20343141439 is an equidigital number, since it uses as much as digits as its factorization.

20343141439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656230400.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 20343141439 in words is "twenty billion, three hundred forty-three million, one hundred forty-one thousand, four hundred thirty-nine".