1311021301303 has 32 divisors (see below), whose sum is σ = 1532575296000. Its totient is φ = 1098322346880.

The previous prime is 1311021301273. The next prime is 1311021301307. The reversal of 1311021301303 is 3031031201131.

It is a cyclic number.

It is not a de Polignac number, because 1311021301303 - 2⁹ = 1311021300791 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 40471173 + ... + 40503553.

It is an arithmetic number, because the mean of its divisors is an integer number (47892978000).

Almost surely, 2^{1311021301303} is an apocalyptic number.

1311021301303 is a deficient number, since it is larger than the sum of its proper divisors (221553994697).

1311021301303 is a wasteful number, since it uses less digits than its factorization.

1311021301303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33127.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1311021301303 its reverse (3031031201131), we get a palindrome (4342052502434).

The spelling of 1311021301303 in words is "one trillion, three hundred eleven billion, twenty-one million, three hundred one thousand, three hundred three".