131000042400343 has 16 divisors (see below), whose sum is σ = 138986366448384. Its totient is φ = 123045030120960.

The previous prime is 131000042400301. The next prime is 131000042400379. The reversal of 131000042400343 is 343004240000131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131000042400343 is a prime.

It is a super-2 number, since 2×131000042400343² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000042400443) 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, 25252833 + ... + 29995093.

It is an arithmetic number, because the mean of its divisors is an integer number (8686647903024).

Almost surely, 2^{131000042400343} is an apocalyptic number.

131000042400343 is a deficient number, since it is larger than the sum of its proper divisors (7986324048041).

131000042400343 is a wasteful number, since it uses less digits than its factorization.

131000042400343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745562.

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

Adding to 131000042400343 its reverse (343004240000131), we get a palindrome (474004282400474).

The spelling of 131000042400343 in words is "one hundred thirty-one trillion, forty-two million, four hundred thousand, three hundred forty-three".