143320240231 has 4 divisors (see below), whose sum is σ = 163794560272. Its totient is φ = 122845920192.

The previous prime is 143320240183. The next prime is 143320240277. The reversal of 143320240231 is 132042023341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132042023341 = 337 ⋅391816093.

It is a cyclic number.

It is not a de Polignac number, because 143320240231 - 2⁹ = 143320239719 is a prime.

It is a super-2 number, since 2×143320240231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143320240196 and 143320240205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143320240291) 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, 10237160010 + ... + 10237160023.

It is an arithmetic number, because the mean of its divisors is an integer number (40948640068).

Almost surely, 2^143320240231 is an apocalyptic number.

143320240231 is a deficient number, since it is larger than the sum of its proper divisors (20474320041).

143320240231 is an equidigital number, since it uses as much as digits as its factorization.

143320240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20474320040.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 143320240231 its reverse (132042023341), we get a palindrome (275362263572).

The spelling of 143320240231 in words is "one hundred forty-three billion, three hundred twenty million, two hundred forty thousand, two hundred thirty-one".