1231333222019 has 2 divisors, whose sum is σ = 1231333222020. Its totient is φ = 1231333222018.

The previous prime is 1231333222013. The next prime is 1231333222057. The reversal of 1231333222019 is 9102223331321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231333222019 - 2⁴ = 1231333222003 is a prime.

It is a super-2 number, since 2×1231333222019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1231333222013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615666611009 + 615666611010.

It is an arithmetic number, because the mean of its divisors is an integer number (615666611010).

Almost surely, 2^{1231333222019} is an apocalyptic number.

1231333222019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231333222019 is an equidigital number, since it uses as much as digits as its factorization.

1231333222019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 1231333222019 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-three million, two hundred twenty-two thousand, nineteen".