201431243043 has 32 divisors (see below), whose sum is σ = 301633420800. Its totient is φ = 132842268000.

The previous prime is 201431243029. The next prime is 201431243071. The reversal of 201431243043 is 340342134102.

201431243043 is a `hidden beast` number, since 201 + 431 + 24 + 3 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 201431243043 - 2¹⁷ = 201431111971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 201431242998 and 201431243016.

It is not an unprimeable number, because it can be changed into a prime (201431243093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3161778 + ... + 3224856.

It is an arithmetic number, because the mean of its divisors is an integer number (9426044400).

Almost surely, 2^201431243043 is an apocalyptic number.

201431243043 is a deficient number, since it is larger than the sum of its proper divisors (100202177757).

201431243043 is a wasteful number, since it uses less digits than its factorization.

201431243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64360 (or 64354 counting only the distinct ones).

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

Adding to 201431243043 its reverse (340342134102), we get a palindrome (541773377145).

The spelling of 201431243043 in words is "two hundred one billion, four hundred thirty-one million, two hundred forty-three thousand, forty-three".