23031343142 has 4 divisors (see below), whose sum is σ = 34547014716. Its totient is φ = 11515671570.

The previous prime is 23031343141. The next prime is 23031343187. The reversal of 23031343142 is 24134313032.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031343141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757835784 + ... + 5757835787.

It is an arithmetic number, because the mean of its divisors is an integer number (8636753679).

Almost surely, 2^23031343142 is an apocalyptic number.

23031343142 is a deficient number, since it is larger than the sum of its proper divisors (11515671574).

23031343142 is a wasteful number, since it uses less digits than its factorization.

23031343142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11515671573.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 23031343142 its reverse (24134313032), we get a palindrome (47165656174).

The spelling of 23031343142 in words is "twenty-three billion, thirty-one million, three hundred forty-three thousand, one hundred forty-two".