142531013220 has 96 divisors (see below), whose sum is σ = 412126740480. Its totient is φ = 36767364480.

The previous prime is 142531013171. The next prime is 142531013221. The reversal of 142531013220 is 22310135241.

It is not an unprimeable number, because it can be changed into a prime (142531013221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5043249 + ... + 5071431.

It is an arithmetic number, because the mean of its divisors is an integer number (4292986880).

Almost surely, 2^142531013220 is an apocalyptic number.

142531013220 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 142531013220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206063370240).

142531013220 is an abundant number, since it is smaller than the sum of its proper divisors (269595727260).

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

142531013220 is a wasteful number, since it uses less digits than its factorization.

142531013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30945 (or 30943 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 142531013220 its reverse (22310135241), we get a palindrome (164841148461).

The spelling of 142531013220 in words is "one hundred forty-two billion, five hundred thirty-one million, thirteen thousand, two hundred twenty".