1142203421040 has 80 divisors (see below), whose sum is σ = 3862724305536. Its totient is φ = 276897798400.

The previous prime is 1142203421033. The next prime is 1142203421041. The reversal of 1142203421040 is 401243022411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1142203421040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142203421041) 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, 216323766 + ... + 216329045.

Almost surely, 2^{1142203421040} is an apocalyptic number.

1142203421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142203421040 is an abundant number, since it is smaller than the sum of its proper divisors (2720520884496).

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

1142203421040 is a wasteful number, since it uses less digits than its factorization.

1142203421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432652838 (or 432652832 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1142203421040 its reverse (401243022411), we get a palindrome (1543446443451).

The spelling of 1142203421040 in words is "one trillion, one hundred forty-two billion, two hundred three million, four hundred twenty-one thousand, forty".