1020561110346 has 32 divisors (see below), whose sum is σ = 2045155972608. Its totient is φ = 339515062640.

The previous prime is 1020561110341. The next prime is 1020561110353. The reversal of 1020561110346 is 6430111650201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1020561110341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13567981 + ... + 13642991.

It is an arithmetic number, because the mean of its divisors is an integer number (63911124144).

Almost surely, 2^{1020561110346} is an apocalyptic number.

1020561110346 is an abundant number, since it is smaller than the sum of its proper divisors (1024594862262).

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

1020561110346 is a wasteful number, since it uses less digits than its factorization.

1020561110346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79466.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 1020561110346 its reverse (6430111650201), we get a palindrome (7450672760547).

The spelling of 1020561110346 in words is "one trillion, twenty billion, five hundred sixty-one million, one hundred ten thousand, three hundred forty-six".