142100243440321 has 32 divisors (see below), whose sum is σ = 150527910435840. Its totient is φ = 133870577104704.

The previous prime is 142100243440301. The next prime is 142100243440427. The reversal of 142100243440321 is 123044342001241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142100243440321 - 2³³ = 142091653505729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142100243440301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162151430 + ... + 1162273696.

It is an arithmetic number, because the mean of its divisors is an integer number (4703997201120).

Almost surely, 2^{142100243440321} is an apocalyptic number.

It is an amenable number.

142100243440321 is a deficient number, since it is larger than the sum of its proper divisors (8427666995519).

142100243440321 is a wasteful number, since it uses less digits than its factorization.

142100243440321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124245.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 142100243440321 its reverse (123044342001241), we get a palindrome (265144585441562).

The spelling of 142100243440321 in words is "one hundred forty-two trillion, one hundred billion, two hundred forty-three million, four hundred forty thousand, three hundred twenty-one".