142321101 has 8 divisors (see below), whose sum is σ = 204358560. Its totient is φ = 87582192.

The previous prime is 142321043. The next prime is 142321103. The reversal of 142321101 is 101123241.

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

It is not a de Polignac number, because 142321101 - 2¹⁷ = 142190029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1824591 + ... + 1824668.

It is an arithmetic number, because the mean of its divisors is an integer number (25544820).

Almost surely, 2^142321101 is an apocalyptic number.

It is an amenable number.

142321101 is a deficient number, since it is larger than the sum of its proper divisors (62037459).

142321101 is a wasteful number, since it uses less digits than its factorization.

142321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649275.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 142321101 is about 11929.8407784848. The cubic root of 142321101 is about 522.1032920476.

Adding to 142321101 its reverse (101123241), we get a palindrome (243444342).

The spelling of 142321101 in words is "one hundred forty-two million, three hundred twenty-one thousand, one hundred one".