1301231099 has 8 divisors (see below), whose sum is σ = 1487378688. Its totient is φ = 1115147880.

The previous prime is 1301231081. The next prime is 1301231111. The reversal of 1301231099 is 9901321031.

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

It is not a de Polignac number, because 1301231099 - 2¹² = 1301227003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301231699) 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, 40514 + ... + 65144.

It is an arithmetic number, because the mean of its divisors is an integer number (185922336).

Almost surely, 2^1301231099 is an apocalyptic number.

1301231099 is a deficient number, since it is larger than the sum of its proper divisors (186147589).

1301231099 is an equidigital number, since it uses as much as digits as its factorization.

1301231099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32185.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1301231099 is about 36072.5809861174. The cubic root of 1301231099 is about 1091.7372904397.

The spelling of 1301231099 in words is "one billion, three hundred one million, two hundred thirty-one thousand, ninety-nine".