1012144133242 has 16 divisors (see below), whose sum is σ = 1672634232864. Its totient is φ = 455510410000.

The previous prime is 1012144133239. The next prime is 1012144133243. The reversal of 1012144133242 is 2423314412101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012144133242.

It is not an unprimeable number, because it can be changed into a prime (1012144133243) 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, 227752984 + ... + 227757427.

It is an arithmetic number, because the mean of its divisors is an integer number (104539639554).

Almost surely, 2^{1012144133242} is an apocalyptic number.

1012144133242 is a deficient number, since it is larger than the sum of its proper divisors (660490099622).

1012144133242 is a wasteful number, since it uses less digits than its factorization.

1012144133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455510525.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1012144133242 its reverse (2423314412101), we get a palindrome (3435458545343).

The spelling of 1012144133242 in words is "one trillion, twelve billion, one hundred forty-four million, one hundred thirty-three thousand, two hundred forty-two".