1145032320432 has 160 divisors (see below), whose sum is σ = 3971580802560. Its totient is φ = 274533212160.

The previous prime is 1145032320407. The next prime is 1145032320437. The reversal of 1145032320432 is 2340232305411.

It is a super-2 number, since 2×1145032320432² (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 1145032320432.

It is not an unprimeable number, because it can be changed into a prime (1145032320437) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11867457 + ... + 11963552.

It is an arithmetic number, because the mean of its divisors is an integer number (24822380016).

Almost surely, 2^{1145032320432} is an apocalyptic number.

1145032320432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145032320432 is an abundant number, since it is smaller than the sum of its proper divisors (2826548482128).

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

1145032320432 is a wasteful number, since it uses less digits than its factorization.

1145032320432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23831051 (or 23831045 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 1145032320432 its reverse (2340232305411), we get a palindrome (3485264625843).

The spelling of 1145032320432 in words is "one trillion, one hundred forty-five billion, thirty-two million, three hundred twenty thousand, four hundred thirty-two".