1323131099 has 8 divisors (see below), whose sum is σ = 1336913760. Its totient is φ = 1309366656.

The previous prime is 1323131087. The next prime is 1323131111. The reversal of 1323131099 is 9901313231.

It is an interprime number because it is at equal distance from previous prime (1323131087) and next prime (1323131111).

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-1323131099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323131039) 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, 179417 + ... + 186645.

It is an arithmetic number, because the mean of its divisors is an integer number (167114220).

Almost surely, 2^1323131099 is an apocalyptic number.

1323131099 is a deficient number, since it is larger than the sum of its proper divisors (13782661).

1323131099 is a wasteful number, since it uses less digits than its factorization.

1323131099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109.

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

The square root of 1323131099 is about 36374.8690581836. The cubic root of 1323131099 is about 1097.8279726799.

The spelling of 1323131099 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, ninety-nine".