1142423242340 has 48 divisors (see below), whose sum is σ = 2463618326400. Its totient is φ = 444753603840.

The previous prime is 1142423242321. The next prime is 1142423242343. The reversal of 1142423242340 is 432423242411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1142423242297 and 1142423242306.

It is not an unprimeable number, because it can be changed into a prime (1142423242343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2122040 + ... + 2605359.

It is an arithmetic number, because the mean of its divisors is an integer number (51325381800).

Almost surely, 2^{1142423242340} is an apocalyptic number.

1142423242340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142423242340 is an abundant number, since it is smaller than the sum of its proper divisors (1321195084060).

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

1142423242340 is a wasteful number, since it uses less digits than its factorization.

1142423242340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727732 (or 4727730 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1142423242340 its reverse (432423242411), we get a palindrome (1574846484751).

The spelling of 1142423242340 in words is "one trillion, one hundred forty-two billion, four hundred twenty-three million, two hundred forty-two thousand, three hundred forty".