1020443134340 has 96 divisors (see below), whose sum is σ = 2455772836608. Its totient is φ = 348909120000.

The previous prime is 1020443134313. The next prime is 1020443134343. The reversal of 1020443134340 is 434313440201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1020443134343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79585130 + ... + 79597950.

It is an arithmetic number, because the mean of its divisors is an integer number (25580967048).

Almost surely, 2^{1020443134340} is an apocalyptic number.

1020443134340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020443134340 is an abundant number, since it is smaller than the sum of its proper divisors (1435329702268).

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

1020443134340 is a wasteful number, since it uses less digits than its factorization.

1020443134340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14349 (or 14347 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1020443134340 its reverse (434313440201), we get a palindrome (1454756574541).

The spelling of 1020443134340 in words is "one trillion, twenty billion, four hundred forty-three million, one hundred thirty-four thousand, three hundred forty".