1240043120536 has 32 divisors (see below), whose sum is σ = 2537625966480. Its totient is φ = 563395046400.

The previous prime is 1240043120483. The next prime is 1240043120549. The reversal of 1240043120536 is 6350213400421.

It is a junction number, because it is equal to n+sod(n) for n = 1240043120498 and 1240043120507.

It is a congruent number.

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, 3070221 + ... + 3450556.

Almost surely, 2^{1240043120536} is an apocalyptic number.

It is an amenable number.

1240043120536 is an abundant number, since it is smaller than the sum of its proper divisors (1297582845944).

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

1240043120536 is a wasteful number, since it uses less digits than its factorization.

1240043120536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6522955 (or 6522951 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1240043120536 its reverse (6350213400421), we get a palindrome (7590256520957).

The spelling of 1240043120536 in words is "one trillion, two hundred forty billion, forty-three million, one hundred twenty thousand, five hundred thirty-six".