281423307343 has 2 divisors, whose sum is σ = 281423307344. Its totient is φ = 281423307342.

The previous prime is 281423307259. The next prime is 281423307371. The reversal of 281423307343 is 343703324182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281423307343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281423307296 and 281423307305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281423347343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140711653671 + 140711653672.

It is an arithmetic number, because the mean of its divisors is an integer number (140711653672).

Almost surely, 2^281423307343 is an apocalyptic number.

281423307343 is a deficient number, since it is larger than the sum of its proper divisors (1).

281423307343 is an equidigital number, since it uses as much as digits as its factorization.

281423307343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 281423307343 in words is "two hundred eighty-one billion, four hundred twenty-three million, three hundred seven thousand, three hundred forty-three".