20423411343 has 6 divisors (see below), whose sum is σ = 29500483064. Its totient is φ = 13615607556.

The previous prime is 20423411339. The next prime is 20423411347. The reversal of 20423411343 is 34311432402.

20423411343 is a `hidden beast` number, since 204 + 2 + 3 + 411 + 3 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (20423411339) and next prime (20423411347).

It is not a de Polignac number, because 20423411343 - 2² = 20423411339 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 (20423411347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1134633955 + ... + 1134633972.

Almost surely, 2^20423411343 is an apocalyptic number.

20423411343 is a deficient number, since it is larger than the sum of its proper divisors (9077071721).

20423411343 is a wasteful number, since it uses less digits than its factorization.

20423411343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269267933 (or 2269267930 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20423411343 its reverse (34311432402), we get a palindrome (54734843745).

The spelling of 20423411343 in words is "twenty billion, four hundred twenty-three million, four hundred eleven thousand, three hundred forty-three".