23143435431 has 8 divisors (see below), whose sum is σ = 32482014720. Its totient is φ = 14616906552.

The previous prime is 23143435421. The next prime is 23143435459. The reversal of 23143435431 is 13453434132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23143435431 - 2⁷ = 23143435303 is a prime.

It is a super-2 number, since 2×23143435431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23143435392 and 23143435401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143435421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203012535 + ... + 203012648.

It is an arithmetic number, because the mean of its divisors is an integer number (4060251840).

Almost surely, 2^23143435431 is an apocalyptic number.

23143435431 is a deficient number, since it is larger than the sum of its proper divisors (9338579289).

23143435431 is a wasteful number, since it uses less digits than its factorization.

23143435431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406025205.

The product of its digits is 51840, while the sum is 33.

Adding to 23143435431 its reverse (13453434132), we get a palindrome (36596869563).

The spelling of 23143435431 in words is "twenty-three billion, one hundred forty-three million, four hundred thirty-five thousand, four hundred thirty-one".