142311305251 has 8 divisors (see below), whose sum is σ = 147038631264. Its totient is φ = 137659616640.

The previous prime is 142311305231. The next prime is 142311305261. The reversal of 142311305251 is 152503113241.

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

It is not a de Polignac number, because 142311305251 - 2²⁵ = 142277750819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142311305221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18905526 + ... + 18913051.

It is an arithmetic number, because the mean of its divisors is an integer number (18379828908).

Almost surely, 2^142311305251 is an apocalyptic number.

142311305251 is a deficient number, since it is larger than the sum of its proper divisors (4727326013).

142311305251 is an equidigital number, since it uses as much as digits as its factorization.

142311305251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37818701.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 142311305251 its reverse (152503113241), we get a palindrome (294814418492).

The spelling of 142311305251 in words is "one hundred forty-two billion, three hundred eleven million, three hundred five thousand, two hundred fifty-one".