312341231505 has 16 divisors (see below), whose sum is σ = 499805757504. Its totient is φ = 166562061120.

The previous prime is 312341231491. The next prime is 312341231513. The reversal of 312341231505 is 505132143213.

It is not a de Polignac number, because 312341231505 - 2³² = 308046264209 is a prime.

It is a super-3 number, since 3×312341231505³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115566 + ... + 1367175.

It is an arithmetic number, because the mean of its divisors is an integer number (31237859844).

Almost surely, 2^312341231505 is an apocalyptic number.

It is an amenable number.

312341231505 is a deficient number, since it is larger than the sum of its proper divisors (187464525999).

312341231505 is a wasteful number, since it uses less digits than its factorization.

312341231505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491136.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 312341231505 its reverse (505132143213), we get a palindrome (817473374718).

The spelling of 312341231505 in words is "three hundred twelve billion, three hundred forty-one million, two hundred thirty-one thousand, five hundred five".