1311121010099 has 8 divisors (see below), whose sum is σ = 1327053944832. Its totient is φ = 1295277838920.

The previous prime is 1311121010093. The next prime is 1311121010119. The reversal of 1311121010099 is 9900101211131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311121010099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311121010093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22411499 + ... + 22469924.

It is an arithmetic number, because the mean of its divisors is an integer number (165881743104).

Almost surely, 2^{1311121010099} is an apocalyptic number.

1311121010099 is a deficient number, since it is larger than the sum of its proper divisors (15932934733).

1311121010099 is a wasteful number, since it uses less digits than its factorization.

1311121010099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44881777.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 1311121010099 in words is "one trillion, three hundred eleven billion, one hundred twenty-one million, ten thousand, ninety-nine".