143020042420 has 24 divisors (see below), whose sum is σ = 300407278248. Its totient is φ = 57195600000.

The previous prime is 143020042391. The next prime is 143020042423. The reversal of 143020042420 is 24240020341.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2144430864 + 140875611556 = 46308^2 + 375334^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143020042391 and 143020042400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143020042423) 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, 681331 + ... + 866170.

It is an arithmetic number, because the mean of its divisors is an integer number (12516969927).

Almost surely, 2^143020042420 is an apocalyptic number.

143020042420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143020042420 is an abundant number, since it is smaller than the sum of its proper divisors (157387235828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143020042420 is a wasteful number, since it uses less digits than its factorization.

143020042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552131 (or 1552129 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 143020042420 its reverse (24240020341), we get a palindrome (167260062761).

The spelling of 143020042420 in words is "one hundred forty-three billion, twenty million, forty-two thousand, four hundred twenty".