1042320454512 has 80 divisors (see below), whose sum is σ = 2721035009280. Its totient is φ = 343780632576.

The previous prime is 1042320454507. The next prime is 1042320454519. The reversal of 1042320454512 is 2154540232401.

It is a super-2 number, since 2×1042320454512² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042320454519) 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, 22805539 + ... + 22851197.

It is an arithmetic number, because the mean of its divisors is an integer number (34012937616).

Almost surely, 2^{1042320454512} is an apocalyptic number.

1042320454512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042320454512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360517504640).

1042320454512 is an abundant number, since it is smaller than the sum of its proper divisors (1678714554768).

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

1042320454512 is a wasteful number, since it uses less digits than its factorization.

1042320454512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50670 (or 50664 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 1042320454512 its reverse (2154540232401), we get a palindrome (3196860686913).

The spelling of 1042320454512 in words is "one trillion, forty-two billion, three hundred twenty million, four hundred fifty-four thousand, five hundred twelve".