1311213013132 has 36 divisors (see below), whose sum is σ = 2586578927688. Its totient is φ = 576779899200.

The previous prime is 1311213013129. The next prime is 1311213013139. The reversal of 1311213013132 is 2313103121131.

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 (1311213013139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15462553 + ... + 15547120.

It is an arithmetic number, because the mean of its divisors is an integer number (71849414658).

Almost surely, 2^{1311213013132} is an apocalyptic number.

It is an amenable number.

1311213013132 is a deficient number, since it is larger than the sum of its proper divisors (1275365914556).

1311213013132 is a wasteful number, since it uses less digits than its factorization.

1311213013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31009750 (or 31009717 counting only the distinct ones).

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

Adding to 1311213013132 its reverse (2313103121131), we get a palindrome (3624316134263).

The spelling of 1311213013132 in words is "one trillion, three hundred eleven billion, two hundred thirteen million, thirteen thousand, one hundred thirty-two".