23234043142 has 4 divisors (see below), whose sum is σ = 34851064716. Its totient is φ = 11617021570.

The previous prime is 23234043137. The next prime is 23234043143. The reversal of 23234043142 is 24134043232.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23234043142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23234043143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5808510784 + ... + 5808510787.

It is an arithmetic number, because the mean of its divisors is an integer number (8712766179).

Almost surely, 2^23234043142 is an apocalyptic number.

23234043142 is a deficient number, since it is larger than the sum of its proper divisors (11617021574).

23234043142 is a wasteful number, since it uses less digits than its factorization.

23234043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11617021573.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 23234043142 its reverse (24134043232), we get a palindrome (47368086374).

The spelling of 23234043142 in words is "twenty-three billion, two hundred thirty-four million, forty-three thousand, one hundred forty-two".