142321334040 has 128 divisors (see below), whose sum is σ = 476813304000. Its totient is φ = 37759647744.

The previous prime is 142321334039. The next prime is 142321334101. The reversal of 142321334040 is 40433123241.

142321334040 is a `hidden beast` number, since 1 + 4 + 2 + 321 + 334 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142321333995 and 142321334013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121705 + ... + 547224.

Almost surely, 2^142321334040 is an apocalyptic number.

142321334040 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 142321334040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238406652000).

142321334040 is an abundant number, since it is smaller than the sum of its proper divisors (334491969960).

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

142321334040 is a wasteful number, since it uses less digits than its factorization.

142321334040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669146 (or 669136 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 142321334040 its reverse (40433123241), we get a palindrome (182754457281).

The spelling of 142321334040 in words is "one hundred forty-two billion, three hundred twenty-one million, three hundred thirty-four thousand, forty".