142002100520 has 128 divisors (see below), whose sum is σ = 377251430400. Its totient is φ = 47075385600.

The previous prime is 142002100519. The next prime is 142002100543. The reversal of 142002100520 is 25001200241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11095325 + ... + 11108115.

It is an arithmetic number, because the mean of its divisors is an integer number (2947276800).

Almost surely, 2^142002100520 is an apocalyptic number.

142002100520 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 142002100520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188625715200).

142002100520 is an abundant number, since it is smaller than the sum of its proper divisors (235249329880).

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

142002100520 is a wasteful number, since it uses less digits than its factorization.

142002100520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14119 (or 14115 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 142002100520 its reverse (25001200241), we get a palindrome (167003300761).

The spelling of 142002100520 in words is "one hundred forty-two billion, two million, one hundred thousand, five hundred twenty".