23234203142440 has 16 divisors (see below), whose sum is σ = 52276957070580. Its totient is φ = 9293681256960.

The previous prime is 23234203142413. The next prime is 23234203142441. The reversal of 23234203142440 is 4424130243232.

It can be written as a sum of positive squares in 2 ways, for example, as 21011020753284 + 2223182389156 = 4583778^2 + 1491034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23234203142396 and 23234203142405.

It is not an unprimeable number, because it can be changed into a prime (23234203142441) 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, 290427539241 + ... + 290427539320.

Almost surely, 2^{23234203142440} is an apocalyptic number.

23234203142440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23234203142440 is an abundant number, since it is smaller than the sum of its proper divisors (29042753928140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23234203142440 is a wasteful number, since it uses less digits than its factorization.

23234203142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580855078572 (or 580855078568 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 23234203142440 its reverse (4424130243232), we get a palindrome (27658333385672).

The spelling of 23234203142440 in words is "twenty-three trillion, two hundred thirty-four billion, two hundred three million, one hundred forty-two thousand, four hundred forty".