1020443331342 has 16 divisors (see below), whose sum is σ = 2040914374992. Its totient is φ = 340143158400.

The previous prime is 1020443331293. The next prime is 1020443331343. The reversal of 1020443331342 is 2431333440201.

It is a happy number.

It is a super-4 number, since 4×1020443331342⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020443331343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659659 + ... + 1573542.

It is an arithmetic number, because the mean of its divisors is an integer number (127557148437).

Almost surely, 2^{1020443331342} is an apocalyptic number.

1020443331342 is an abundant number, since it is smaller than the sum of its proper divisors (1020471043650).

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

1020443331342 is a wasteful number, since it uses less digits than its factorization.

1020443331342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309363.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1020443331342 its reverse (2431333440201), we get a palindrome (3451776771543).

The spelling of 1020443331342 in words is "one trillion, twenty billion, four hundred forty-three million, three hundred thirty-one thousand, three hundred forty-two".