1231349307 has 8 divisors (see below), whose sum is σ = 1686172176. Its totient is φ = 798712992.

The previous prime is 1231349297. The next prime is 1231349323. The reversal of 1231349307 is 7039431321.

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

It is not a de Polignac number, because 1231349307 - 2⁴ = 1231349291 is a prime.

It is a super-2 number, since 2×1231349307² = 3032442231698760498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231349387) 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, 5546508 + ... + 5546729.

It is an arithmetic number, because the mean of its divisors is an integer number (210771522).

Almost surely, 2^1231349307 is an apocalyptic number.

1231349307 is a deficient number, since it is larger than the sum of its proper divisors (454822869).

1231349307 is a wasteful number, since it uses less digits than its factorization.

1231349307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093277.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 1231349307 is about 35090.5871566721. The cubic root of 1231349307 is about 1071.8329160005.

The spelling of 1231349307 in words is "one billion, two hundred thirty-one million, three hundred forty-nine thousand, three hundred seven".