1240342342311 has 16 divisors (see below), whose sum is σ = 1656819410400. Its totient is φ = 825380302848.

The previous prime is 1240342342303. The next prime is 1240342342361. The reversal of 1240342342311 is 1132432430421.

It is not a de Polignac number, because 1240342342311 - 2³ = 1240342342303 is a prime.

It is a super-2 number, since 2×1240342342311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240342342361) 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, 43358865 + ... + 43387461.

It is an arithmetic number, because the mean of its divisors is an integer number (103551213150).

Almost surely, 2^{1240342342311} is an apocalyptic number.

1240342342311 is a deficient number, since it is larger than the sum of its proper divisors (416477068089).

1240342342311 is a wasteful number, since it uses less digits than its factorization.

1240342342311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54578.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1240342342311 its reverse (1132432430421), we get a palindrome (2372774772732).

The spelling of 1240342342311 in words is "one trillion, two hundred forty billion, three hundred forty-two million, three hundred forty-two thousand, three hundred eleven".