1001231143242 has 16 divisors (see below), whose sum is σ = 2184504312672. Its totient is φ = 303403376720.

The previous prime is 1001231143229. The next prime is 1001231143247. The reversal of 1001231143242 is 2423411321001.

It is not an unprimeable number, because it can be changed into a prime (1001231143247) 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, 7585084353 + ... + 7585084484.

It is an arithmetic number, because the mean of its divisors is an integer number (136531519542).

Almost surely, 2^{1001231143242} is an apocalyptic number.

1001231143242 is an abundant number, since it is smaller than the sum of its proper divisors (1183273169430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001231143242 is a wasteful number, since it uses less digits than its factorization.

1001231143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170168853.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1001231143242 its reverse (2423411321001), we get a palindrome (3424642464243).

The spelling of 1001231143242 in words is "one trillion, one billion, two hundred thirty-one million, one hundred forty-three thousand, two hundred forty-two".