2309861423 has 4 divisors (see below), whose sum is σ = 2353443768. Its totient is φ = 2266279080.

The previous prime is 2309861413. The next prime is 2309861443. The reversal of 2309861423 is 3241689032.

2309861423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2309861423 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 (2309861413) 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, 21791093 + ... + 21791198.

It is an arithmetic number, because the mean of its divisors is an integer number (588360942).

Almost surely, 2^2309861423 is an apocalyptic number.

2309861423 is a deficient number, since it is larger than the sum of its proper divisors (43582345).

2309861423 is an equidigital number, since it uses as much as digits as its factorization.

2309861423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43582344.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 2309861423 is about 48061.0177066612. The cubic root of 2309861423 is about 1321.8899738148.

The spelling of 2309861423 in words is "two billion, three hundred nine million, eight hundred sixty-one thousand, four hundred twenty-three".