1311202113232 has 40 divisors (see below), whose sum is σ = 2809368938880. Its totient is φ = 587836558080.

The previous prime is 1311202113211. The next prime is 1311202113233. The reversal of 1311202113232 is 2323112021131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311202113233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51014632 + ... + 51040327.

It is an arithmetic number, because the mean of its divisors is an integer number (70234223472).

Almost surely, 2^{1311202113232} is an apocalyptic number.

It is an amenable number.

1311202113232 is an abundant number, since it is smaller than the sum of its proper divisors (1498166825648).

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

1311202113232 is a wasteful number, since it uses less digits than its factorization.

1311202113232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102055051 (or 102055045 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1311202113232 its reverse (2323112021131), we get a palindrome (3634314134363).

The spelling of 1311202113232 in words is "one trillion, three hundred eleven billion, two hundred two million, one hundred thirteen thousand, two hundred thirty-two".