1311000122 has 16 divisors (see below), whose sum is σ = 1999095552. Its totient is φ = 644666880.

The previous prime is 1311000121. The next prime is 1311000139. The reversal of 1311000122 is 2210001131.

It is not an unprimeable number, because it can be changed into a prime (1311000121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78263 + ... + 93525.

It is an arithmetic number, because the mean of its divisors is an integer number (124943472).

Almost surely, 2^1311000122 is an apocalyptic number.

1311000122 is a deficient number, since it is larger than the sum of its proper divisors (688095430).

1311000122 is a wasteful number, since it uses less digits than its factorization.

1311000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15973.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1311000122 is about 36207.7356651862. The cubic root of 1311000122 is about 1094.4625628657.

Adding to 1311000122 its reverse (2210001131), we get a palindrome (3521001253).

The spelling of 1311000122 in words is "one billion, three hundred eleven million, one hundred twenty-two", and thus it is an aban number.