11971373 has 2 divisors, whose sum is σ = 11971374. Its totient is φ = 11971372.

The previous prime is 11971369. The next prime is 11971397. The reversal of 11971373 is 37317911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11812969 + 158404 = 3437^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 11971373 - 2² = 11971369 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11971073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5985686 + 5985687.

It is an arithmetic number, because the mean of its divisors is an integer number (5985687).

Almost surely, 2^11971373 is an apocalyptic number.

It is an amenable number.

11971373 is a deficient number, since it is larger than the sum of its proper divisors (1).

11971373 is an equidigital number, since it uses as much as digits as its factorization.

11971373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3969, while the sum is 32.

The square root of 11971373 is about 3459.9671963763. The cubic root of 11971373 is about 228.7606494689.

The spelling of 11971373 in words is "eleven million, nine hundred seventy-one thousand, three hundred seventy-three".