1311332099 has 16 divisors (see below), whose sum is σ = 1642260480. Its totient is φ = 1017221760.

The previous prime is 1311332093. The next prime is 1311332123. The reversal of 1311332099 is 9902331131.

It is a cyclic number.

It is not a de Polignac number, because 1311332099 - 2²⁰ = 1310283523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311332093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21014 + ... + 55355.

It is an arithmetic number, because the mean of its divisors is an integer number (102641280).

Almost surely, 2^1311332099 is an apocalyptic number.

1311332099 is a deficient number, since it is larger than the sum of its proper divisors (330928381).

1311332099 is a wasteful number, since it uses less digits than its factorization.

1311332099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76610.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 1311332099 is about 36212.3197130479. The cubic root of 1311332099 is about 1094.5549365500.

The spelling of 1311332099 in words is "one billion, three hundred eleven million, three hundred thirty-two thousand, ninety-nine".