1021432240000 has 80 divisors (see below), whose sum is σ = 2542791921120. Its totient is φ = 408572864000.

The previous prime is 1021432239937. The next prime is 1021432240027. The reversal of 1021432240000 is 422341201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1021432240000² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021432240000.

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 9 ways as a sum of consecutive naturals, for example, 6303952 + ... + 6463951.

It is an arithmetic number, because the mean of its divisors is an integer number (31784899014).

Almost surely, 2^{1021432240000} is an apocalyptic number.

1021432240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021432240000 is an abundant number, since it is smaller than the sum of its proper divisors (1521359681120).

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

1021432240000 is an frugal number, since it uses more digits than its factorization.

1021432240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767937 (or 12767910 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1021432240000 its reverse (422341201), we get a palindrome (1021854581201).

The spelling of 1021432240000 in words is "one trillion, twenty-one billion, four hundred thirty-two million, two hundred forty thousand".