1213381327 has 2 divisors, whose sum is σ = 1213381328. Its totient is φ = 1213381326.

The previous prime is 1213381321. The next prime is 1213381339. The reversal of 1213381327 is 7231833121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213381327 - 2³ = 1213381319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213381321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606690663 + 606690664.

It is an arithmetic number, because the mean of its divisors is an integer number (606690664).

Almost surely, 2^1213381327 is an apocalyptic number.

1213381327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213381327 is an equidigital number, since it uses as much as digits as its factorization.

1213381327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 1213381327 is about 34833.6235123480. The cubic root of 1213381327 is about 1066.5939167940.

The spelling of 1213381327 in words is "one billion, two hundred thirteen million, three hundred eighty-one thousand, three hundred twenty-seven".