4312400243 has 2 divisors, whose sum is σ = 4312400244. Its totient is φ = 4312400242.

The previous prime is 4312400233. The next prime is 4312400269. The reversal of 4312400243 is 3420042134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4312400243 - 2¹⁶ = 4312334707 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4312400233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156200121 + 2156200122.

It is an arithmetic number, because the mean of its divisors is an integer number (2156200122).

Almost surely, 2^4312400243 is an apocalyptic number.

4312400243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312400243 is an equidigital number, since it uses as much as digits as its factorization.

4312400243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4312400243 is about 65668.8681416088. The cubic root of 4312400243 is about 1627.6949670433.

Adding to 4312400243 its reverse (3420042134), we get a palindrome (7732442377).

The spelling of 4312400243 in words is "four billion, three hundred twelve million, four hundred thousand, two hundred forty-three".