312040420435 has 16 divisors (see below), whose sum is σ = 378153345024. Its totient is φ = 247163333472.

The previous prime is 312040420427. The next prime is 312040420457. The reversal of 312040420435 is 534024040213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312040420435 - 2³ = 312040420427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2904894 + ... + 3010396.

It is an arithmetic number, because the mean of its divisors is an integer number (23634584064).

Almost surely, 2^312040420435 is an apocalyptic number.

312040420435 is a deficient number, since it is larger than the sum of its proper divisors (66112924589).

312040420435 is a wasteful number, since it uses less digits than its factorization.

312040420435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111354.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 312040420435 its reverse (534024040213), we get a palindrome (846064460648).

The spelling of 312040420435 in words is "three hundred twelve billion, forty million, four hundred twenty thousand, four hundred thirty-five".