423400100431409 has 2 divisors, whose sum is σ = 423400100431410. Its totient is φ = 423400100431408.

The previous prime is 423400100431387. The next prime is 423400100431447. The reversal of 423400100431409 is 904134001004324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370697146729009 + 52702953702400 = 19253497^2 + 7259680^2 .

It is a cyclic number.

It is not a de Polignac number, because 423400100431409 - 2²⁴ = 423400083654193 is a prime.

It is not a weakly prime, because it can be changed into another prime (423400106431409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211700050215704 + 211700050215705.

It is an arithmetic number, because the mean of its divisors is an integer number (211700050215705).

Almost surely, 2^{423400100431409} is an apocalyptic number.

It is an amenable number.

423400100431409 is a deficient number, since it is larger than the sum of its proper divisors (1).

423400100431409 is an equidigital number, since it uses as much as digits as its factorization.

423400100431409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 423400100431409 in words is "four hundred twenty-three trillion, four hundred billion, one hundred million, four hundred thirty-one thousand, four hundred nine".