1234210440142 has 64 divisors (see below), whose sum is σ = 2118898958400. Its totient is φ = 535498629120.

The previous prime is 1234210440137. The next prime is 1234210440143. The reversal of 1234210440142 is 2410440124321.

It is a self number, because there is not a number n which added to its sum of digits gives 1234210440142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234210440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10775808 + ... + 10889740.

It is an arithmetic number, because the mean of its divisors is an integer number (33107796225).

Almost surely, 2^{1234210440142} is an apocalyptic number.

1234210440142 is a deficient number, since it is larger than the sum of its proper divisors (884688518258).

1234210440142 is a wasteful number, since it uses less digits than its factorization.

1234210440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114421.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1234210440142 its reverse (2410440124321), we get a palindrome (3644650564463).

The spelling of 1234210440142 in words is "one trillion, two hundred thirty-four billion, two hundred ten million, four hundred forty thousand, one hundred forty-two".