142423235212 has 24 divisors (see below), whose sum is σ = 263137150640. Its totient is φ = 67263436800.

The previous prime is 142423235197. The next prime is 142423235233. The reversal of 142423235212 is 212532324241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2754789 + ... + 2806012.

Almost surely, 2^142423235212 is an apocalyptic number.

It is an amenable number.

142423235212 is a deficient number, since it is larger than the sum of its proper divisors (120713915428).

142423235212 is a wasteful number, since it uses less digits than its factorization.

142423235212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561161 (or 5561159 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

Adding to 142423235212 its reverse (212532324241), we get a palindrome (354955559453).

The spelling of 142423235212 in words is "one hundred forty-two billion, four hundred twenty-three million, two hundred thirty-five thousand, two hundred twelve".