13012943 has 2 divisors, whose sum is σ = 13012944. Its totient is φ = 13012942.

The previous prime is 13012933. The next prime is 13012969. The reversal of 13012943 is 34921031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13012943 - 2⁴ = 13012927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13012913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506471 + 6506472.

It is an arithmetic number, because the mean of its divisors is an integer number (6506472).

Almost surely, 2^13012943 is an apocalyptic number.

13012943 is a deficient number, since it is larger than the sum of its proper divisors (1).

13012943 is an equidigital number, since it uses as much as digits as its factorization.

13012943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13012943 is about 3607.3457000958. The cubic root of 13012943 is about 235.2114770554.

Adding to 13012943 its reverse (34921031), we get a palindrome (47933974).

The spelling of 13012943 in words is "thirteen million, twelve thousand, nine hundred forty-three".