423040431043 has 2 divisors, whose sum is σ = 423040431044. Its totient is φ = 423040431042.

The previous prime is 423040430993. The next prime is 423040431061. The reversal of 423040431043 is 340134040324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423040431043 - 2²¹ = 423038333891 is a prime.

It is not a weakly prime, because it can be changed into another prime (423040435043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211520215521 + 211520215522.

It is an arithmetic number, because the mean of its divisors is an integer number (211520215522).

Almost surely, 2^423040431043 is an apocalyptic number.

423040431043 is a deficient number, since it is larger than the sum of its proper divisors (1).

423040431043 is an equidigital number, since it uses as much as digits as its factorization.

423040431043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 423040431043 its reverse (340134040324), we get a palindrome (763174471367).

The spelling of 423040431043 in words is "four hundred twenty-three billion, forty million, four hundred thirty-one thousand, forty-three".