423431434111 has 16 divisors (see below), whose sum is σ = 495554990400. Its totient is φ = 361649541120.

The previous prime is 423431434067. The next prime is 423431434163. The reversal of 423431434111 is 111434134324.

It is not a de Polignac number, because 423431434111 - 2⁹ = 423431433599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423431434711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2100226 + ... + 2292991.

It is an arithmetic number, because the mean of its divisors is an integer number (30972186900).

Almost surely, 2^423431434111 is an apocalyptic number.

423431434111 is a deficient number, since it is larger than the sum of its proper divisors (72123556289).

423431434111 is an equidigital number, since it uses as much as digits as its factorization.

423431434111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393519 (or 4393505 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

Adding to 423431434111 its reverse (111434134324), we get a palindrome (534865568435).

The spelling of 423431434111 in words is "four hundred twenty-three billion, four hundred thirty-one million, four hundred thirty-four thousand, one hundred eleven".