1020434533443 has 40 divisors (see below), whose sum is σ = 1651682240208. Its totient is φ = 624107094336.

The previous prime is 1020434533373. The next prime is 1020434533477. The reversal of 1020434533443 is 3443354340201.

It is a happy number.

1020434533443 is a `hidden beast` number, since 1 + 0 + 204 + 3 + 4 + 5 + 3 + 3 + 443 = 666.

1020434533443 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020434533443 - 2¹⁶ = 1020434467907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020434533398 and 1020434533407.

It is not an unprimeable number, because it can be changed into a prime (1020434533043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2800980 + ... + 3144257.

Almost surely, 2^{1020434533443} is an apocalyptic number.

1020434533443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020434533443 is a deficient number, since it is larger than the sum of its proper divisors (631247706765).

1020434533443 is a wasteful number, since it uses less digits than its factorization.

1020434533443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5945425 (or 5945416 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 36.

Adding to 1020434533443 its reverse (3443354340201), we get a palindrome (4463788873644).

The spelling of 1020434533443 in words is "one trillion, twenty billion, four hundred thirty-four million, five hundred thirty-three thousand, four hundred forty-three".