201403431243 has 18 divisors (see below), whose sum is σ = 338412568884. Its totient is φ = 115087674744.

The previous prime is 201403431227. The next prime is 201403431319. The reversal of 201403431243 is 342134304102.

201403431243 is a `hidden beast` number, since 201 + 4 + 0 + 3 + 431 + 24 + 3 = 666.

It is not a de Polignac number, because 201403431243 - 2⁴ = 201403431227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201403439243) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 228348121 + ... + 228349002.

Almost surely, 2^201403431243 is an apocalyptic number.

201403431243 is a deficient number, since it is larger than the sum of its proper divisors (137009137641).

201403431243 is a wasteful number, since it uses less digits than its factorization.

201403431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456697143 (or 456697133 counting only the distinct ones).

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

Adding to 201403431243 its reverse (342134304102), we get a palindrome (543537735345).

The spelling of 201403431243 in words is "two hundred one billion, four hundred three million, four hundred thirty-one thousand, two hundred forty-three".