423312261 has 8 divisors (see below), whose sum is σ = 565675200. Its totient is φ = 281578752.

The previous prime is 423312247. The next prime is 423312283. The reversal of 423312261 is 162213324.

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

It is not a de Polignac number, because 423312261 - 2¹³ = 423304069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423312361) 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, 155785 + ... + 158478.

It is an arithmetic number, because the mean of its divisors is an integer number (70709400).

Almost surely, 2^423312261 is an apocalyptic number.

It is an amenable number.

423312261 is a deficient number, since it is larger than the sum of its proper divisors (142362939).

423312261 is a wasteful number, since it uses less digits than its factorization.

423312261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314715.

The product of its digits is 1728, while the sum is 24.

The square root of 423312261 is about 20574.5537254153. The cubic root of 423312261 is about 750.8507448350.

Adding to 423312261 its reverse (162213324), we get a palindrome (585525585).

The spelling of 423312261 in words is "four hundred twenty-three million, three hundred twelve thousand, two hundred sixty-one".