242312000405 has 4 divisors (see below), whose sum is σ = 290774400492. Its totient is φ = 193849600320.

The previous prime is 242312000393. The next prime is 242312000423. The reversal of 242312000405 is 504000213242.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 126968218276 + 115343782129 = 356326^2 + 339623^2 .

It is not a de Polignac number, because 242312000405 - 2²⁴ = 242295223189 is a prime.

It is a super-3 number, since 3×242312000405³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24231200036 + ... + 24231200045.

It is an arithmetic number, because the mean of its divisors is an integer number (72693600123).

Almost surely, 2^242312000405 is an apocalyptic number.

It is an amenable number.

242312000405 is a deficient number, since it is larger than the sum of its proper divisors (48462400087).

242312000405 is an equidigital number, since it uses as much as digits as its factorization.

242312000405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48462400086.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 242312000405 its reverse (504000213242), we get a palindrome (746312213647).

The spelling of 242312000405 in words is "two hundred forty-two billion, three hundred twelve million, four hundred five", and thus it is an aban number.