311011012103 has 12 divisors (see below), whose sum is σ = 359847454680. Its totient is φ = 267856372080.

The previous prime is 311011012087. The next prime is 311011012129. The reversal of 311011012103 is 301210110113.

It is a happy number.

It is not a de Polignac number, because 311011012103 - 2⁴ = 311011012087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311011042103) 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 11 ways as a sum of consecutive naturals, for example, 67638200 + ... + 67642797.

It is an arithmetic number, because the mean of its divisors is an integer number (29987287890).

Almost surely, 2^311011012103 is an apocalyptic number.

311011012103 is a deficient number, since it is larger than the sum of its proper divisors (48836442577).

311011012103 is a wasteful number, since it uses less digits than its factorization.

311011012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135281038 (or 135281027 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 311011012103 its reverse (301210110113), we get a palindrome (612221122216).

It can be divided in two parts, 3110110 and 12103, that added together give a palindrome (3122213).

The spelling of 311011012103 in words is "three hundred eleven billion, eleven million, twelve thousand, one hundred three".