2309823623 has 2 divisors, whose sum is σ = 2309823624. Its totient is φ = 2309823622.

The previous prime is 2309823619. The next prime is 2309823661. The reversal of 2309823623 is 3263289032.

It is an a-pointer prime, because the next prime (2309823661) can be obtained adding 2309823623 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2309823623 - 2² = 2309823619 is a prime.

It is a super-2 number, since 2×2309823623² = 10670570338737692258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309823023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154911811 + 1154911812.

It is an arithmetic number, because the mean of its divisors is an integer number (1154911812).

Almost surely, 2^2309823623 is an apocalyptic number.

2309823623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309823623 is an equidigital number, since it uses as much as digits as its factorization.

2309823623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 2309823623 is about 48060.6244549527. The cubic root of 2309823623 is about 1321.8827630340.

The spelling of 2309823623 in words is "two billion, three hundred nine million, eight hundred twenty-three thousand, six hundred twenty-three".