1231232021179 has 2 divisors, whose sum is σ = 1231232021180. Its totient is φ = 1231232021178.

The previous prime is 1231232021147. The next prime is 1231232021233. The reversal of 1231232021179 is 9711202321321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231232021179 - 2⁵ = 1231232021147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231232022179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615616010589 + 615616010590.

It is an arithmetic number, because the mean of its divisors is an integer number (615616010590).

Almost surely, 2^{1231232021179} is an apocalyptic number.

1231232021179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231232021179 is an equidigital number, since it uses as much as digits as its factorization.

1231232021179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 1231232021179 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-two million, twenty-one thousand, one hundred seventy-nine".