143420303131 has 4 divisors (see below), whose sum is σ = 163908917872. Its totient is φ = 122931688392.

The previous prime is 143420303129. The next prime is 143420303137. The reversal of 143420303131 is 131303024341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131303024341 = 71 ⋅1849338371.

It is a cyclic number.

It is not a de Polignac number, because 143420303131 - 2¹ = 143420303129 is a prime.

It is a super-2 number, since 2×143420303131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143420303096 and 143420303105.

It is not an unprimeable number, because it can be changed into a prime (143420303137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10244307360 + ... + 10244307373.

It is an arithmetic number, because the mean of its divisors is an integer number (40977229468).

Almost surely, 2^143420303131 is an apocalyptic number.

143420303131 is a deficient number, since it is larger than the sum of its proper divisors (20488614741).

143420303131 is an equidigital number, since it uses as much as digits as its factorization.

143420303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20488614740.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 143420303131 its reverse (131303024341), we get a palindrome (274723327472).

The spelling of 143420303131 in words is "one hundred forty-three billion, four hundred twenty million, three hundred three thousand, one hundred thirty-one".