1312102434412 has 144 divisors (see below), whose sum is σ = 2916065746944. Its totient is φ = 505617552000.

The previous prime is 1312102434403. The next prime is 1312102434439. The reversal of 1312102434412 is 2144342012131.

It is a happy number.

It is a super-2 number, since 2×1312102434412² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536207373 + ... + 536209819.

It is an arithmetic number, because the mean of its divisors is an integer number (20250456576).

Almost surely, 2^{1312102434412} 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 1312102434412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458032873472).

1312102434412 is an abundant number, since it is smaller than the sum of its proper divisors (1603963312532).

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

1312102434412 is a wasteful number, since it uses less digits than its factorization.

1312102434412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148 (or 4135 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1312102434412 its reverse (2144342012131), we get a palindrome (3456444446543).

The spelling of 1312102434412 in words is "one trillion, three hundred twelve billion, one hundred two million, four hundred thirty-four thousand, four hundred twelve".