31130327 has 2 divisors, whose sum is σ = 31130328. Its totient is φ = 31130326.

The previous prime is 31130299. The next prime is 31130353. The reversal of 31130327 is 72303113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31130327 - 2¹⁰ = 31129303 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 31130299 and 31130308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31130377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565163 + 15565164.

It is an arithmetic number, because the mean of its divisors is an integer number (15565164).

Almost surely, 2^31130327 is an apocalyptic number.

31130327 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130327 is an equidigital number, since it uses as much as digits as its factorization.

31130327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 31130327 is about 5579.4557978355. The cubic root of 31130327 is about 314.5776720392.

The spelling of 31130327 in words is "thirty-one million, one hundred thirty thousand, three hundred twenty-seven".