1311202030113 has 24 divisors (see below), whose sum is σ = 1898101745280. Its totient is φ = 872223318720.

The previous prime is 1311202030109. The next prime is 1311202030123. The reversal of 1311202030113 is 3110302021131.

1311202030113 is a `hidden beast` number, since 1 + 311 + 20 + 20 + 301 + 13 = 666.

It is not a de Polignac number, because 1311202030113 - 2² = 1311202030109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311202030123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18453268 + ... + 18524186.

It is an arithmetic number, because the mean of its divisors is an integer number (79087572720).

Almost surely, 2^{1311202030113} is an apocalyptic number.

It is an amenable number.

1311202030113 is a deficient number, since it is larger than the sum of its proper divisors (586899715167).

1311202030113 is a wasteful number, since it uses less digits than its factorization.

1311202030113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75389 (or 75386 counting only the distinct ones).

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

Adding to 1311202030113 its reverse (3110302021131), we get a palindrome (4421504051244).

The spelling of 1311202030113 in words is "one trillion, three hundred eleven billion, two hundred two million, thirty thousand, one hundred thirteen".