1000012543040 has 56 divisors (see below), whose sum is σ = 2721462712512. Its totient is φ = 342861442560.

The previous prime is 1000012543039. The next prime is 1000012543091. The reversal of 1000012543040 is 403452100001.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223214846 + ... + 223219325.

Almost surely, 2^{1000012543040} is an apocalyptic number.

1000012543040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000012543040 is an abundant number, since it is smaller than the sum of its proper divisors (1721450169472).

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

1000012543040 is an equidigital number, since it uses as much as digits as its factorization.

1000012543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446434195 (or 446434185 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 1000012543040 its reverse (403452100001), we get a palindrome (1403464643041).

The spelling of 1000012543040 in words is "one trillion, twelve million, five hundred forty-three thousand, forty".