1240204535045 has 16 divisors (see below), whose sum is σ = 1702501694208. Its totient is φ = 849601086720.

The previous prime is 1240204535041. The next prime is 1240204535111. The reversal of 1240204535045 is 5405354020421.

It is not a de Polignac number, because 1240204535045 - 2² = 1240204535041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 1240204534996 and 1240204535014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240204535041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17148404 + ... + 17220573.

It is an arithmetic number, because the mean of its divisors is an integer number (106406355888).

Almost surely, 2^{1240204535045} is an apocalyptic number.

It is an amenable number.

1240204535045 is a deficient number, since it is larger than the sum of its proper divisors (462297159163).

1240204535045 is a wasteful number, since it uses less digits than its factorization.

1240204535045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34370020.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 1240204535045 its reverse (5405354020421), we get a palindrome (6645558555466).

The spelling of 1240204535045 in words is "one trillion, two hundred forty billion, two hundred four million, five hundred thirty-five thousand, forty-five".