311320011123 has 24 divisors (see below), whose sum is σ = 502529869296. Its totient is φ = 184076870400.

The previous prime is 311320011077. The next prime is 311320011139. The reversal of 311320011123 is 321110023113.

311320011123 is a `hidden beast` number, since 311 + 320 + 0 + 1 + 11 + 23 = 666.

It is not a de Polignac number, because 311320011123 - 2⁸ = 311320010867 is a prime.

It is a super-2 number, since 2×311320011123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311320011096 and 311320011105.

It is not an unprimeable number, because it can be changed into a prime (311320011143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 38345290 + ... + 38353407.

It is an arithmetic number, because the mean of its divisors is an integer number (20938744554).

Almost surely, 2^311320011123 is an apocalyptic number.

311320011123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

311320011123 is a deficient number, since it is larger than the sum of its proper divisors (191209858173).

311320011123 is a wasteful number, since it uses less digits than its factorization.

311320011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76698755 (or 76698752 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 311320011123 its reverse (321110023113), we get a palindrome (632430034236).

The spelling of 311320011123 in words is "three hundred eleven billion, three hundred twenty million, eleven thousand, one hundred twenty-three".