142312431251 has 4 divisors (see below), whose sum is σ = 142363314432. Its totient is φ = 142261548072.

The previous prime is 142312431229. The next prime is 142312431277. The reversal of 142312431251 is 152134213241.

It is a happy number.

142312431251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152134213241 = 37 ⋅4111735493.

It is a cyclic number.

It is not a de Polignac number, because 142312431251 - 2¹⁸ = 142312169107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142312439251) 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, 25437395 + ... + 25442988.

It is an arithmetic number, because the mean of its divisors is an integer number (35590828608).

Almost surely, 2^142312431251 is an apocalyptic number.

142312431251 is a deficient number, since it is larger than the sum of its proper divisors (50883181).

142312431251 is an equidigital number, since it uses as much as digits as its factorization.

142312431251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50883180.

The product of its digits is 5760, while the sum is 29.

Adding to 142312431251 its reverse (152134213241), we get a palindrome (294446644492).

The spelling of 142312431251 in words is "one hundred forty-two billion, three hundred twelve million, four hundred thirty-one thousand, two hundred fifty-one".