1213231340227 has 2 divisors, whose sum is σ = 1213231340228. Its totient is φ = 1213231340226.

The previous prime is 1213231340219. The next prime is 1213231340249. The reversal of 1213231340227 is 7220431323121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213231340227 - 2³ = 1213231340219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213231340287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606615670113 + 606615670114.

It is an arithmetic number, because the mean of its divisors is an integer number (606615670114).

Almost surely, 2^{1213231340227} is an apocalyptic number.

1213231340227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213231340227 is an equidigital number, since it uses as much as digits as its factorization.

1213231340227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 1213231340227 its reverse (7220431323121), we get a palindrome (8433662663348).

The spelling of 1213231340227 in words is "one trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred forty thousand, two hundred twenty-seven".