143131134109 has 4 divisors (see below), whose sum is σ = 151550612604. Its totient is φ = 134711655616.

The previous prime is 143131134103. The next prime is 143131134119. The reversal of 143131134109 is 901431131341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901431131341 = 13 ⋅69340856257.

It can be written as a sum of positive squares in 2 ways, for example, as 95235811609 + 47895322500 = 308603^2 + 218850^2 .

It is a cyclic number.

It is not a de Polignac number, because 143131134109 - 2⁹ = 143131133597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143131134103) 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, 4209739222 + ... + 4209739255.

It is an arithmetic number, because the mean of its divisors is an integer number (37887653151).

Almost surely, 2^143131134109 is an apocalyptic number.

It is an amenable number.

143131134109 is a deficient number, since it is larger than the sum of its proper divisors (8419478495).

143131134109 is an equidigital number, since it uses as much as digits as its factorization.

143131134109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8419478494.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 143131134109 in words is "one hundred forty-three billion, one hundred thirty-one million, one hundred thirty-four thousand, one hundred nine".