142002323220 has 96 divisors (see below), whose sum is σ = 405232128000. Its totient is φ = 37145775744.

The previous prime is 142002323213. The next prime is 142002323227. The reversal of 142002323220 is 22323200241.

It is an interprime number because it is at equal distance from previous prime (142002323213) and next prime (142002323227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142002323227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 886881 + ... + 1034679.

It is an arithmetic number, because the mean of its divisors is an integer number (4221168000).

Almost surely, 2^142002323220 is an apocalyptic number.

142002323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142002323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202616064000).

142002323220 is an abundant number, since it is smaller than the sum of its proper divisors (263229804780).

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

142002323220 is a wasteful number, since it uses less digits than its factorization.

142002323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148117 (or 148115 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 142002323220 its reverse (22323200241), we get a palindrome (164325523461).

The spelling of 142002323220 in words is "one hundred forty-two billion, two million, three hundred twenty-three thousand, two hundred twenty".