1311021301302 has 24 divisors (see below), whose sum is σ = 2840634533880. Its totient is φ = 436993503360.

The previous prime is 1311021301273. The next prime is 1311021301307. The reversal of 1311021301302 is 2031031201131.

1311021301302 is a `hidden beast` number, since 1 + 31 + 10 + 21 + 301 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311021301307) 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, 529824 + ... + 1703747.

It is an arithmetic number, because the mean of its divisors is an integer number (118359772245).

Almost surely, 2^{1311021301302} is an apocalyptic number.

1311021301302 is an abundant number, since it is smaller than the sum of its proper divisors (1529613232578).

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

1311021301302 is a wasteful number, since it uses less digits than its factorization.

1311021301302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266188 (or 2266185 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1311021301302 its reverse (2031031201131), we get a palindrome (3342052502433).

The spelling of 1311021301302 in words is "one trillion, three hundred eleven billion, twenty-one million, three hundred one thousand, three hundred two".