142444121020331 has 8 divisors (see below), whose sum is σ = 156968834613360. Its totient is φ = 128429046500832.

The previous prime is 142444121020319. The next prime is 142444121020339. The reversal of 142444121020331 is 133020121444241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142444121020331 is a prime.

It is a super-2 number, since 2×142444121020331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142444121020339) 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, 127409767796 + ... + 127409768913.

It is an arithmetic number, because the mean of its divisors is an integer number (19621104326670).

Almost surely, 2^{142444121020331} is an apocalyptic number.

142444121020331 is a deficient number, since it is larger than the sum of its proper divisors (14524713593029).

142444121020331 is a wasteful number, since it uses less digits than its factorization.

142444121020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254819536765.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 142444121020331 its reverse (133020121444241), we get a palindrome (275464242464572).

The spelling of 142444121020331 in words is "one hundred forty-two trillion, four hundred forty-four billion, one hundred twenty-one million, twenty thousand, three hundred thirty-one".