1311101011099 has 4 divisors (see below), whose sum is σ = 1430292012120. Its totient is φ = 1191910010080.

The previous prime is 1311101011067. The next prime is 1311101011117. The reversal of 1311101011099 is 9901101011131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1311101011099 - 2⁵ = 1311101011067 is a prime.

It is a super-2 number, since 2×1311101011099² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311101011019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59595500494 + ... + 59595500515.

It is an arithmetic number, because the mean of its divisors is an integer number (357573003030).

Almost surely, 2^{1311101011099} is an apocalyptic number.

1311101011099 is a deficient number, since it is larger than the sum of its proper divisors (119191001021).

1311101011099 is a wasteful number, since it uses less digits than its factorization.

1311101011099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119191001020.

The product of its (nonzero) digits is 243, while the sum is 28.

The spelling of 1311101011099 in words is "one trillion, three hundred eleven billion, one hundred one million, eleven thousand, ninety-nine".