131403312400243 has 16 divisors (see below), whose sum is σ = 149978287972800. Its totient is φ = 114051515821056.

The previous prime is 131403312400219. The next prime is 131403312400259. The reversal of 131403312400243 is 342004213304131.

It is a cyclic number.

It is not a de Polignac number, because 131403312400243 - 2¹⁷ = 131403312269171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131403312400273) 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, 283173855 + ... + 283637512.

It is an arithmetic number, because the mean of its divisors is an integer number (9373642998300).

Almost surely, 2^{131403312400243} is an apocalyptic number.

131403312400243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131403312400243 is a deficient number, since it is larger than the sum of its proper divisors (18574975572557).

131403312400243 is a wasteful number, since it uses less digits than its factorization.

131403312400243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566812446.

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

Adding to 131403312400243 its reverse (342004213304131), we get a palindrome (473407525704374).

The spelling of 131403312400243 in words is "one hundred thirty-one trillion, four hundred three billion, three hundred twelve million, four hundred thousand, two hundred forty-three".