1020561125344 has 24 divisors (see below), whose sum is σ = 2074043579328. Its totient is φ = 493819898880.

The previous prime is 1020561125293. The next prime is 1020561125351. The reversal of 1020561125344 is 4435211650201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514394737 + ... + 514396720.

It is an arithmetic number, because the mean of its divisors is an integer number (86418482472).

Almost surely, 2^{1020561125344} is an apocalyptic number.

It is an amenable number.

1020561125344 is an abundant number, since it is smaller than the sum of its proper divisors (1053482453984).

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

1020561125344 is a wasteful number, since it uses less digits than its factorization.

1020561125344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028791498 (or 1028791490 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 1020561125344 its reverse (4435211650201), we get a palindrome (5455772775545).

The spelling of 1020561125344 in words is "one trillion, twenty billion, five hundred sixty-one million, one hundred twenty-five thousand, three hundred forty-four".