142231231000 has 128 divisors (see below), whose sum is σ = 352738488960. Its totient is φ = 53494272000.

The previous prime is 142231230979. The next prime is 142231231001. The reversal of 142231231000 is 132132241.

It is a happy number.

It is a super-2 number, since 2×142231231000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231231001) 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, 20787580 + ... + 20794420.

It is an arithmetic number, because the mean of its divisors is an integer number (2755769445).

Almost surely, 2^142231231000 is an apocalyptic number.

142231231000 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 142231231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176369244480).

142231231000 is an abundant number, since it is smaller than the sum of its proper divisors (210507257960).

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

142231231000 is a wasteful number, since it uses less digits than its factorization.

142231231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102 (or 8088 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 142231231000 its reverse (132132241), we get a palindrome (142363363241).

The spelling of 142231231000 in words is "one hundred forty-two billion, two hundred thirty-one million, two hundred thirty-one thousand".