231220133022419 has 2 divisors, whose sum is σ = 231220133022420. Its totient is φ = 231220133022418.

The previous prime is 231220133022401. The next prime is 231220133022451. The reversal of 231220133022419 is 914220331022132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231220133022419 - 2²⁰ = 231220131973843 is a prime.

It is a super-2 number, since 2×231220133022419² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231220133021419) 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, 115610066511209 + 115610066511210.

It is an arithmetic number, because the mean of its divisors is an integer number (115610066511210).

Almost surely, 2^{231220133022419} is an apocalyptic number.

231220133022419 is a deficient number, since it is larger than the sum of its proper divisors (1).

231220133022419 is an equidigital number, since it uses as much as digits as its factorization.

231220133022419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 231220133022419 in words is "two hundred thirty-one trillion, two hundred twenty billion, one hundred thirty-three million, twenty-two thousand, four hundred nineteen".