311005042105 has 8 divisors (see below), whose sum is σ = 373256864064. Its totient is φ = 248770158000.

The previous prime is 311005042067. The next prime is 311005042133. The reversal of 311005042105 is 501240500113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-311005042105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4194031 + ... + 4267540.

It is an arithmetic number, because the mean of its divisors is an integer number (46657108008).

Almost surely, 2^311005042105 is an apocalyptic number.

It is an amenable number.

311005042105 is a deficient number, since it is larger than the sum of its proper divisors (62251821959).

311005042105 is an equidigital number, since it uses as much as digits as its factorization.

311005042105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8468927.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 311005042105 its reverse (501240500113), we get a palindrome (812245542218).

The spelling of 311005042105 in words is "three hundred eleven billion, five million, forty-two thousand, one hundred five".