312340336505431 has 16 divisors (see below), whose sum is σ = 345476962952128. Its totient is φ = 280506080332800.

The previous prime is 312340336505399. The next prime is 312340336505441. The reversal of 312340336505431 is 134505633043213.

It is not a de Polignac number, because 312340336505431 - 2⁵ = 312340336505399 is a prime.

It is a super-2 number, since 2×312340336505431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312340336505441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9737355 + ... + 26823436.

It is an arithmetic number, because the mean of its divisors is an integer number (21592310184508).

Almost surely, 2^{312340336505431} is an apocalyptic number.

312340336505431 is a deficient number, since it is larger than the sum of its proper divisors (33136626446697).

312340336505431 is a wasteful number, since it uses less digits than its factorization.

312340336505431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36578602.

The product of its (nonzero) digits is 1166400, while the sum is 43.

Adding to 312340336505431 its reverse (134505633043213), we get a palindrome (446845969548644).

The spelling of 312340336505431 in words is "three hundred twelve trillion, three hundred forty billion, three hundred thirty-six million, five hundred five thousand, four hundred thirty-one".