312440042335 has 4 divisors (see below), whose sum is σ = 374928050808. Its totient is φ = 249952033864.

The previous prime is 312440042309. The next prime is 312440042377. The reversal of 312440042335 is 533240044213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 312440042335 - 2⁷ = 312440042207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312440042297 and 312440042306.

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, 31244004229 + ... + 31244004238.

It is an arithmetic number, because the mean of its divisors is an integer number (93732012702).

Almost surely, 2^312440042335 is an apocalyptic number.

312440042335 is a deficient number, since it is larger than the sum of its proper divisors (62488008473).

312440042335 is an equidigital number, since it uses as much as digits as its factorization.

312440042335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62488008472.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 312440042335 its reverse (533240044213), we get a palindrome (845680086548).

The spelling of 312440042335 in words is "three hundred twelve billion, four hundred forty million, forty-two thousand, three hundred thirty-five".