142404143431 has 32 divisors (see below), whose sum is σ = 168397802496. Its totient is φ = 119107296000.

The previous prime is 142404143383. The next prime is 142404143437. The reversal of 142404143431 is 134341404241.

142404143431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142404143431 - 2¹⁵ = 142404110663 is a prime.

It is a super-2 number, since 2×142404143431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142404143393 and 142404143402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404143437) 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 31 ways as a sum of consecutive naturals, for example, 639805 + ... + 833161.

It is an arithmetic number, because the mean of its divisors is an integer number (5262431328).

Almost surely, 2^142404143431 is an apocalyptic number.

142404143431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142404143431 is a deficient number, since it is larger than the sum of its proper divisors (25993659065).

142404143431 is a wasteful number, since it uses less digits than its factorization.

142404143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193503.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 142404143431 its reverse (134341404241), we get a palindrome (276745547672).

The spelling of 142404143431 in words is "one hundred forty-two billion, four hundred four million, one hundred forty-three thousand, four hundred thirty-one".