142012323021 has 8 divisors (see below), whose sum is σ = 197582362560. Its totient is φ = 90558582752.

The previous prime is 142012323017. The next prime is 142012323023. The reversal of 142012323021 is 120323210241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142012323021 - 2² = 142012323017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142012323023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029074736 + ... + 1029074873.

It is an arithmetic number, because the mean of its divisors is an integer number (24697795320).

Almost surely, 2^142012323021 is an apocalyptic number.

It is an amenable number.

142012323021 is a deficient number, since it is larger than the sum of its proper divisors (55570039539).

142012323021 is a wasteful number, since it uses less digits than its factorization.

142012323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058149635.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 142012323021 its reverse (120323210241), we get a palindrome (262335533262).

The spelling of 142012323021 in words is "one hundred forty-two billion, twelve million, three hundred twenty-three thousand, twenty-one".