3130823 has 2 divisors, whose sum is σ = 3130824. Its totient is φ = 3130822.

The previous prime is 3130819. The next prime is 3130871. The reversal of 3130823 is 3280313.

It is a weak prime.

It is an emirp because it is prime and its reverse (3280313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3130823 - 2² = 3130819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3130795 and 3130804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3132823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565411 + 1565412.

It is an arithmetic number, because the mean of its divisors is an integer number (1565412).

Almost surely, 2^3130823 is an apocalyptic number.

3130823 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130823 is an equidigital number, since it uses as much as digits as its factorization.

3130823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3130823 is about 1769.4131795598. The cubic root of 3130823 is about 146.2916388610.

The spelling of 3130823 in words is "three million, one hundred thirty thousand, eight hundred twenty-three".