1042320500544 has 112 divisors (see below), whose sum is σ = 2770109987328. Its totient is φ = 345891667968.

The previous prime is 1042320500537. The next prime is 1042320500561. The reversal of 1042320500544 is 4450050232401.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 105739264 + ... + 105749120.

Almost surely, 2^{1042320500544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042320500544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385054993664).

1042320500544 is an abundant number, since it is smaller than the sum of its proper divisors (1727789486784).

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

1042320500544 is a wasteful number, since it uses less digits than its factorization.

1042320500544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12272 (or 12262 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 1042320500544 its reverse (4450050232401), we get a palindrome (5492370732945).

The spelling of 1042320500544 in words is "one trillion, forty-two billion, three hundred twenty million, five hundred thousand, five hundred forty-four".