142234404431 has 4 divisors (see below), whose sum is σ = 162553605072. Its totient is φ = 121915203792.

The previous prime is 142234404419. The next prime is 142234404479. The reversal of 142234404431 is 134404432241.

142234404431 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.

It is a cyclic number.

It is not a de Polignac number, because 142234404431 - 2¹⁰ = 142234403407 is a prime.

It is a super-2 number, since 2×142234404431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142234404131) 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, 10159600310 + ... + 10159600323.

It is an arithmetic number, because the mean of its divisors is an integer number (40638401268).

Almost surely, 2^142234404431 is an apocalyptic number.

142234404431 is a deficient number, since it is larger than the sum of its proper divisors (20319200641).

142234404431 is an equidigital number, since it uses as much as digits as its factorization.

142234404431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20319200640.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 142234404431 its reverse (134404432241), we get a palindrome (276638836672).

The spelling of 142234404431 in words is "one hundred forty-two billion, two hundred thirty-four million, four hundred four thousand, four hundred thirty-one".