131020231440343 has 16 divisors (see below), whose sum is σ = 153125813019136. Its totient is φ = 109784340649440.

The previous prime is 131020231440313. The next prime is 131020231440353. The reversal of 131020231440343 is 343044132020131.

It is a cyclic number.

It is not a de Polignac number, because 131020231440343 - 2⁵ = 131020231440311 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 (131020231440313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941154171 + ... + 941293372.

It is an arithmetic number, because the mean of its divisors is an integer number (9570363313696).

Almost surely, 2^{131020231440343} is an apocalyptic number.

131020231440343 is a deficient number, since it is larger than the sum of its proper divisors (22105581578793).

131020231440343 is a wasteful number, since it uses less digits than its factorization.

131020231440343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882447774.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131020231440343 its reverse (343044132020131), we get a palindrome (474064363460474).

The spelling of 131020231440343 in words is "one hundred thirty-one trillion, twenty billion, two hundred thirty-one million, four hundred forty thousand, three hundred forty-three".