1331323011099 has 12 divisors (see below), whose sum is σ = 1929585346416. Its totient is φ = 884519495952.

The previous prime is 1331323011091. The next prime is 1331323011229. The reversal of 1331323011099 is 9901103231331.

1331323011099 is a `hidden beast` number, since 1 + 3 + 313 + 230 + 1 + 109 + 9 = 666.

It is not a de Polignac number, because 1331323011099 - 2³ = 1331323011091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331323011091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252428727 + ... + 252434000.

It is an arithmetic number, because the mean of its divisors is an integer number (160798778868).

Almost surely, 2^{1331323011099} is an apocalyptic number.

1331323011099 is a deficient number, since it is larger than the sum of its proper divisors (598262335317).

1331323011099 is a wasteful number, since it uses less digits than its factorization.

1331323011099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504863026 (or 504863023 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The spelling of 1331323011099 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, eleven thousand, ninety-nine".