1302313311112 has 128 divisors (see below), whose sum is σ = 2857135680000. Its totient is φ = 550219737600.

The previous prime is 1302313311107. The next prime is 1302313311113. The reversal of 1302313311112 is 2111133132031.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1302313311113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51382939 + ... + 51408277.

It is an arithmetic number, because the mean of its divisors is an integer number (22321372500).

Almost surely, 2^{1302313311112} 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 1302313311112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428567840000).

1302313311112 is an abundant number, since it is smaller than the sum of its proper divisors (1554822368888).

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

1302313311112 is a wasteful number, since it uses less digits than its factorization.

1302313311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25955 (or 25951 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1302313311112 its reverse (2111133132031), we get a palindrome (3413446443143).

The spelling of 1302313311112 in words is "one trillion, three hundred two billion, three hundred thirteen million, three hundred eleven thousand, one hundred twelve".