142321100 has 36 divisors (see below), whose sum is σ = 309891624. Its totient is φ = 56734080.

The previous prime is 142321043. The next prime is 142321103. The reversal of 142321100 is 1123241.

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 11 ways as a sum of consecutive naturals, for example, 29027 + ... + 33573.

Almost surely, 2^142321100 is an apocalyptic number.

142321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142321100 is an abundant number, since it is smaller than the sum of its proper divisors (167570524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142321100 is a wasteful number, since it uses less digits than its factorization.

142321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 4867 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 142321100 is about 11929.8407365731. The cubic root of 142321100 is about 522.1032908247.

Adding to 142321100 its reverse (1123241), we get a palindrome (143444341).

The spelling of 142321100 in words is "one hundred forty-two million, three hundred twenty-one thousand, one hundred".