1143320220042 has 128 divisors (see below), whose sum is σ = 3092586835968. Its totient is φ = 272121638400.

The previous prime is 1143320220041. The next prime is 1143320220059. The reversal of 1143320220042 is 2400220233411.

It is a happy number.

It is a super-2 number, since 2×1143320220042² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143320219994 and 1143320220021.

It is not an unprimeable number, because it can be changed into a prime (1143320220041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128067 + ... + 1517577.

It is an arithmetic number, because the mean of its divisors is an integer number (24160834656).

Almost surely, 2^{1143320220042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143320220042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546293417984).

1143320220042 is an abundant number, since it is smaller than the sum of its proper divisors (1949266615926).

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

1143320220042 is a wasteful number, since it uses less digits than its factorization.

1143320220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389684.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1143320220042 its reverse (2400220233411), we get a palindrome (3543540453453).

The spelling of 1143320220042 in words is "one trillion, one hundred forty-three billion, three hundred twenty million, two hundred twenty thousand, forty-two".