423443234131 has 4 divisors (see below), whose sum is σ = 441853809552. Its totient is φ = 405032658712.

The previous prime is 423443234101. The next prime is 423443234167. The reversal of 423443234131 is 131432344324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423443234131 - 2⁷ = 423443234003 is a prime.

It is a super-2 number, since 2×423443234131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423443234101) 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 in 3 ways as a sum of consecutive naturals, for example, 9205287676 + ... + 9205287721.

It is an arithmetic number, because the mean of its divisors is an integer number (110463452388).

Almost surely, 2^423443234131 is an apocalyptic number.

423443234131 is a deficient number, since it is larger than the sum of its proper divisors (18410575421).

423443234131 is a wasteful number, since it uses less digits than its factorization.

423443234131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18410575420.

The product of its digits is 82944, while the sum is 34.

Adding to 423443234131 its reverse (131432344324), we get a palindrome (554875578455).

The spelling of 423443234131 in words is "four hundred twenty-three billion, four hundred forty-three million, two hundred thirty-four thousand, one hundred thirty-one".