1001111212142 has 8 divisors (see below), whose sum is σ = 1501843240656. Its totient is φ = 500496798592.

The previous prime is 1001111212141. The next prime is 1001111212147. The reversal of 1001111212142 is 2412121111001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1001111212142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29382458 + ... + 29416509.

It is an arithmetic number, because the mean of its divisors is an integer number (187730405082).

Almost surely, 2^{1001111212142} is an apocalyptic number.

1001111212142 is a deficient number, since it is larger than the sum of its proper divisors (500732028514).

1001111212142 is an equidigital number, since it uses as much as digits as its factorization.

1001111212142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58807482.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1001111212142 its reverse (2412121111001), we get a palindrome (3413232323143).

The spelling of 1001111212142 in words is "one trillion, one billion, one hundred eleven million, two hundred twelve thousand, one hundred forty-two".