261423323 has 8 divisors (see below), whose sum is σ = 299228160. Its totient is φ = 223733160.

The previous prime is 261423307. The next prime is 261423343. The reversal of 261423323 is 323324162.

261423323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 261423323 - 2⁴ = 261423307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261423292 and 261423301.

It is not an unprimeable number, because it can be changed into a prime (261423343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23723 + ... + 32948.

It is an arithmetic number, because the mean of its divisors is an integer number (37403520).

Almost surely, 2^261423323 is an apocalyptic number.

261423323 is a deficient number, since it is larger than the sum of its proper divisors (37804837).

261423323 is an equidigital number, since it uses as much as digits as its factorization.

261423323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57337.

The product of its digits is 5184, while the sum is 26.

The square root of 261423323 is about 16168.5906312208. The cubic root of 261423323 is about 639.4129732825.

Adding to 261423323 its reverse (323324162), we get a palindrome (584747485).

The spelling of 261423323 in words is "two hundred sixty-one million, four hundred twenty-three thousand, three hundred twenty-three".