12903911 has 2 divisors, whose sum is σ = 12903912. Its totient is φ = 12903910.

The previous prime is 12903887. The next prime is 12903929. The reversal of 12903911 is 11930921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12903911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12903941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451955 + 6451956.

It is an arithmetic number, because the mean of its divisors is an integer number (6451956).

Almost surely, 2^12903911 is an apocalyptic number.

12903911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12903911 is an equidigital number, since it uses as much as digits as its factorization.

12903911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 12903911 is about 3592.2014141749. The cubic root of 12903911 is about 234.5527088613.

The spelling of 12903911 in words is "twelve million, nine hundred three thousand, nine hundred eleven".