1240421442311 has 16 divisors (see below), whose sum is σ = 1362558412800. Its totient is φ = 1123975768608.

The previous prime is 1240421442251. The next prime is 1240421442329. The reversal of 1240421442311 is 1132441240421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240421442311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240421442331) 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, 8104385 + ... + 8256021.

It is an arithmetic number, because the mean of its divisors is an integer number (85159900800).

Almost surely, 2^{1240421442311} is an apocalyptic number.

1240421442311 is a deficient number, since it is larger than the sum of its proper divisors (122136970489).

1240421442311 is a wasteful number, since it uses less digits than its factorization.

1240421442311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170398.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1240421442311 its reverse (1132441240421), we get a palindrome (2372862682732).

The spelling of 1240421442311 in words is "one trillion, two hundred forty billion, four hundred twenty-one million, four hundred forty-two thousand, three hundred eleven".