12951311 has 4 divisors (see below), whose sum is σ = 12979512. Its totient is φ = 12923112.

The previous prime is 12951307. The next prime is 12951317. The reversal of 12951311 is 11315921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12951311 - 2² = 12951307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13400 + ... + 14333.

It is an arithmetic number, because the mean of its divisors is an integer number (3244878).

Almost surely, 2^12951311 is an apocalyptic number.

12951311 is a deficient number, since it is larger than the sum of its proper divisors (28201).

12951311 is an equidigital number, since it uses as much as digits as its factorization.

12951311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28200.

The product of its digits is 270, while the sum is 23.

The square root of 12951311 is about 3598.7929921017. The cubic root of 12951311 is about 234.8395524673.

The spelling of 12951311 in words is "twelve million, nine hundred fifty-one thousand, three hundred eleven".