1240142053342 has 16 divisors (see below), whose sum is σ = 1869921023040. Its totient is φ = 616835284992.

The previous prime is 1240142053331. The next prime is 1240142053343. The reversal of 1240142053342 is 2433502410421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240142053343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15739998 + ... + 15818590.

It is an arithmetic number, because the mean of its divisors is an integer number (116870063940).

Almost surely, 2^{1240142053342} is an apocalyptic number.

1240142053342 is a deficient number, since it is larger than the sum of its proper divisors (629778969698).

1240142053342 is a wasteful number, since it uses less digits than its factorization.

1240142053342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119667.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1240142053342 its reverse (2433502410421), we get a palindrome (3673644463763).

The spelling of 1240142053342 in words is "one trillion, two hundred forty billion, one hundred forty-two million, fifty-three thousand, three hundred forty-two".