1307123971 has 16 divisors (see below), whose sum is σ = 1391874048. Its totient is φ = 1224907200.

The previous prime is 1307123953. The next prime is 1307123977. The reversal of 1307123971 is 1793217031.

It is a cyclic number.

It is not a de Polignac number, because 1307123971 - 2¹¹ = 1307121923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1307123977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292111 + ... + 296551.

It is an arithmetic number, because the mean of its divisors is an integer number (86992128).

Almost surely, 2^1307123971 is an apocalyptic number.

1307123971 is a deficient number, since it is larger than the sum of its proper divisors (84750077).

1307123971 is a wasteful number, since it uses less digits than its factorization.

1307123971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 1307123971 is about 36154.1694829241. The cubic root of 1307123971 is about 1093.3828553586.

The spelling of 1307123971 in words is "one billion, three hundred seven million, one hundred twenty-three thousand, nine hundred seventy-one".