1311022130012 has 96 divisors (see below), whose sum is σ = 2804441149440. Its totient is φ = 524439452160.

The previous prime is 1311022129999. The next prime is 1311022130021. The reversal of 1311022130012 is 2100312201131.

It is a super-2 number, since 2×1311022130012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2472728 + ... + 2955744.

It is an arithmetic number, because the mean of its divisors is an integer number (29212928640).

Almost surely, 2^{1311022130012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311022130012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1402220574720).

1311022130012 is an abundant number, since it is smaller than the sum of its proper divisors (1493419019428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311022130012 is a wasteful number, since it uses less digits than its factorization.

1311022130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483171 (or 483169 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1311022130012 its reverse (2100312201131), we get a palindrome (3411334331143).

The spelling of 1311022130012 in words is "one trillion, three hundred eleven billion, twenty-two million, one hundred thirty thousand, twelve".