142321210401 has 4 divisors (see below), whose sum is σ = 189761613872. Its totient is φ = 94880806932.

The previous prime is 142321210349. The next prime is 142321210529. The reversal of 142321210401 is 104012123241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142321210401 - 2⁹ = 142321209889 is a prime.

It is a super-3 number, since 3×142321210401³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142321210001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23720201731 + ... + 23720201736.

It is an arithmetic number, because the mean of its divisors is an integer number (47440403468).

Almost surely, 2^142321210401 is an apocalyptic number.

It is an amenable number.

142321210401 is a deficient number, since it is larger than the sum of its proper divisors (47440403471).

142321210401 is an equidigital number, since it uses as much as digits as its factorization.

142321210401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47440403470.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 142321210401 its reverse (104012123241), we get a palindrome (246333333642).

The spelling of 142321210401 in words is "one hundred forty-two billion, three hundred twenty-one million, two hundred ten thousand, four hundred one".