23556430343 has 2 divisors, whose sum is σ = 23556430344. Its totient is φ = 23556430342.

The previous prime is 23556430277. The next prime is 23556430357. The reversal of 23556430343 is 34303465532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23556430343 - 2¹⁰ = 23556429319 is a prime.

It is a super-2 number, since 2×23556430343² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23556430297 and 23556430306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23556430243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11778215171 + 11778215172.

It is an arithmetic number, because the mean of its divisors is an integer number (11778215172).

Almost surely, 2^23556430343 is an apocalyptic number.

23556430343 is a deficient number, since it is larger than the sum of its proper divisors (1).

23556430343 is an equidigital number, since it uses as much as digits as its factorization.

23556430343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 38.

Adding to 23556430343 its reverse (34303465532), we get a palindrome (57859895875).

The spelling of 23556430343 in words is "twenty-three billion, five hundred fifty-six million, four hundred thirty thousand, three hundred forty-three".