1001321451142 has 4 divisors (see below), whose sum is σ = 1501982176716. Its totient is φ = 500660725570.

The previous prime is 1001321451139. The next prime is 1001321451149. The reversal of 1001321451142 is 2411541231001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001321451149) 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 as a sum of consecutive naturals, namely, 250330362784 + ... + 250330362787.

It is an arithmetic number, because the mean of its divisors is an integer number (375495544179).

Almost surely, 2^{1001321451142} is an apocalyptic number.

1001321451142 is a deficient number, since it is larger than the sum of its proper divisors (500660725574).

1001321451142 is an equidigital number, since it uses as much as digits as its factorization.

1001321451142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500660725573.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 1001321451142 its reverse (2411541231001), we get a palindrome (3412862682143).

The spelling of 1001321451142 in words is "one trillion, one billion, three hundred twenty-one million, four hundred fifty-one thousand, one hundred forty-two".