23143340323 has 4 divisors (see below), whose sum is σ = 23149824808. Its totient is φ = 23136855840.

The previous prime is 23143340287. The next prime is 23143340357. The reversal of 23143340323 is 32304334132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23143340323 is a prime.

It is a super-2 number, since 2×23143340323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23143340291 and 23143340300.

It is not an unprimeable number, because it can be changed into a prime (23143340023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236886 + ... + 3244027.

It is an arithmetic number, because the mean of its divisors is an integer number (5787456202).

Almost surely, 2^23143340323 is an apocalyptic number.

23143340323 is a deficient number, since it is larger than the sum of its proper divisors (6484485).

23143340323 is an equidigital number, since it uses as much as digits as its factorization.

23143340323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484484.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 23143340323 its reverse (32304334132), we get a palindrome (55447674455).

The spelling of 23143340323 in words is "twenty-three billion, one hundred forty-three million, three hundred forty thousand, three hundred twenty-three".