220131234243 has 6 divisors (see below), whose sum is σ = 317967338364. Its totient is φ = 146754156156.

The previous prime is 220131234223. The next prime is 220131234263. The reversal of 220131234243 is 342432131022.

220131234243 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 312 + 342 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (220131234223) and next prime (220131234263).

It is not a de Polignac number, because 220131234243 - 2¹⁶ = 220131168707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220131234223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12229513005 + ... + 12229513022.

It is an arithmetic number, because the mean of its divisors is an integer number (52994556394).

Almost surely, 2^220131234243 is an apocalyptic number.

220131234243 is a deficient number, since it is larger than the sum of its proper divisors (97836104121).

220131234243 is a wasteful number, since it uses less digits than its factorization.

220131234243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24459026033 (or 24459026030 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 220131234243 its reverse (342432131022), we get a palindrome (562563365265).

It can be divided in two parts, 2201312 and 34243, that added together give a triangular number (2235555 = T₂₁₁₄).

The spelling of 220131234243 in words is "two hundred twenty billion, one hundred thirty-one million, two hundred thirty-four thousand, two hundred forty-three".