311450112503311 has 4 divisors (see below), whose sum is σ = 312742436621824. Its totient is φ = 310157788384800.

The previous prime is 311450112503269. The next prime is 311450112503317. The reversal of 311450112503311 is 113305211054113.

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 311450112503311 - 2⁹ = 311450112502799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311450112503317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646162058895 + ... + 646162059376.

It is an arithmetic number, because the mean of its divisors is an integer number (78185609155456).

Almost surely, 2^{311450112503311} is an apocalyptic number.

311450112503311 is a deficient number, since it is larger than the sum of its proper divisors (1292324118513).

311450112503311 is a wasteful number, since it uses less digits than its factorization.

311450112503311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292324118512.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 311450112503311 its reverse (113305211054113), we get a palindrome (424755323557424).

The spelling of 311450112503311 in words is "three hundred eleven trillion, four hundred fifty billion, one hundred twelve million, five hundred three thousand, three hundred eleven".